The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message.

zetlyn/cve-nvd vulnerability cve CVE-2026-93889 known 2026-10-03

https://nvd.nist.gov/vuln/detail/CVE-2026-93889

Properties

cvss7.2
receipt
Source
NVD
Its words
7.2
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Mail logging & Catcher",
            "vendor": "wardee",
            "versions": [
              {
                "lessThanOrEqual": "2.1.12",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "security@wordfence.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message."
      }
    ],
    "id": "CVE-2026-93889",
    "lastModified": "2026-10-03T07:16:48.680",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.7,
          "source": "security@wordfence.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-03T07:16:48.680",
    "references": [
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve"
      }
    ],
    "sourceIdentifier": "security@wordfence.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-79"
          }
        ],
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  }
}
productMail logging & Catcher
receipt
Source
NVD
Its words
Mail logging & Catcher
Read by
field:cve.affected[].affectedData[].product
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Mail logging & Catcher",
            "vendor": "wardee",
            "versions": [
              {
                "lessThanOrEqual": "2.1.12",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "security@wordfence.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message."
      }
    ],
    "id": "CVE-2026-93889",
    "lastModified": "2026-10-03T07:16:48.680",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.7,
          "source": "security@wordfence.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-03T07:16:48.680",
    "references": [
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve"
      }
    ],
    "sourceIdentifier": "security@wordfence.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-79"
          }
        ],
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  }
}
statusReceived
receipt
Source
NVD
Its words
Received
Read by
field:cve.vulnStatus
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Mail logging & Catcher",
            "vendor": "wardee",
            "versions": [
              {
                "lessThanOrEqual": "2.1.12",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "security@wordfence.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message."
      }
    ],
    "id": "CVE-2026-93889",
    "lastModified": "2026-10-03T07:16:48.680",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.7,
          "source": "security@wordfence.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-03T07:16:48.680",
    "references": [
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve"
      }
    ],
    "sourceIdentifier": "security@wordfence.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-79"
          }
        ],
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  }
}
vendorwardee
receipt
Source
NVD
Its words
wardee
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-10-03 12:09 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Mail logging & Catcher",
            "vendor": "wardee",
            "versions": [
              {
                "lessThanOrEqual": "2.1.12",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "security@wordfence.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message."
      }
    ],
    "id": "CVE-2026-93889",
    "lastModified": "2026-10-03T07:16:48.680",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.7,
          "source": "security@wordfence.com",
          "type": "Primary"
        }
      ]
    },
    "published": "2026-10-03T07:16:48.680",
    "references": [
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher"
      },
      {
        "source": "security@wordfence.com",
        "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve"
      }
    ],
    "sourceIdentifier": "security@wordfence.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-79"
          }
        ],
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  }
}

Text

The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message.