Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and…

cve CVE-2026-23920 1 source, 1 claim · Watch

NVD writes:
Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands. the claim

Severity: HIGH NVD
CVSS: 8.8 NVD
Vendor: Zabbix NVD
Product: Zabbix NVD
CWE: CWE-78 NVD

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-03-24

first spoke of it: Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.

NVD

Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.

What it is to other things

affects	zabbix/zabbix NVD
made_by	zabbix NVD

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

8.8

receipt

Source: NVD
Its words: 8.8
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Cvss4

cvss4

NVD

7.7

receipt

Source: NVD
Its words: 7.7
Read by: field:cve.metrics.cvssMetricV40[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV40[].cvssData.baseScore
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	7.7
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Cvss4 vector

cvss4_vector

NVD

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

receipt

Source: NVD
Its words: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Read by: field:cve.metrics.cvssMetricV40[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV40[].cvssData.vectorString
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-78

receipt

Source: NVD
Its words: CWE-78
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CWE-78
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

Zabbix

receipt

Source: NVD
Its words: Zabbix
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Zabbix
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

HIGH

From 7.0 to 8.9.

receipt

Source: NVD
Its words: HIGH
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	HIGH
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

high

Status

status

NVD

Analyzed

receipt

Source: NVD
Its words: Analyzed
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

total

The attacker gains full control of the component, or all of its information.

receipt

Source: NVD
Its words: total
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	total
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

Zabbix

receipt

Source: NVD
Its words: Zabbix
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	Zabbix
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "modules": [
              "Server",
              "Proxy"
            ],
            "product": "Zabbix",
            "repo": "https://git.zabbix.com/",
            "vendor": "Zabbix",
            "versions": [
              {
                "changes": [
                  {
                    "at": "7.0.22",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.0.21",
                "status": "affected",
                "version": "7.0.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.2.15",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.2.14",
                "status": "affected",
                "version": "7.2.0",
                "versionType": "git"
              },
              {
                "changes": [
                  {
                    "at": "7.4.6",
                    "status": "unaffected"
                  }
                ],
                "lessThanOrEqual": "7.4.5",
                "status": "affected",
                "version": "7.4.0",
                "versionType": "git"
              }
            ]
          }
        ],
        "source": "security@zabbix.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "81A39B0A-C0D7-464A-AFE5-E88314DB4F35",
                "versionEndExcluding": "7.0.22",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "D84A2506-3FE5-4251-8F53-D870916024C2",
                "versionEndExcluding": "7.2.15",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "82070C2B-7BD0-4F96-AE73-74048BFFB69D",
                "versionEndExcluding": "7.4.6",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands."
      },
      {
        "lang": "es",
        "value": "La entrada de scripts de acción de host y evento se valida con una expresión regular (regex) (establecida por el administrador), pero la validación se ejecuta en modo multilínea. Si los anclajes ^ y $ se utilizan en la validación de entrada del usuario, un salto de línea inyectado permite a los usuarios autenticados eludir la verificación e inyectar comandos de shell."
      }
    ],
    "id": "CVE-2026-23920",
    "lastModified": "2026-09-10T21:15:39.950",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "security@zabbix.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-23920",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-03-25T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-03-24T19:16:49.557",
    "references": [
      {
        "source": "security@zabbix.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://support.zabbix.com/browse/ZBX-27639"
      }
    ],
    "sourceIdentifier": "security@zabbix.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-78"
          }
        ],
        "source": "security@zabbix.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

zetlyn/cve-nvd · 2026-03-24

automatable no cvss 8.8 cvss4 7.7 cvss4_vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X cvss_vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H cwe CWE-78 exploitation none product Zabbix severity HIGH status Analyzed technical_impact total vendor Zabbix

source