Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the ne…

cve CVE-2025-23108 1 source, 1 claim · Watch

NVD writes:
Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134. the claim

Severity: MEDIUM NVD
CVSS: 4.3 NVD
Vendor: Mozilla NVD
Product: Firefox for iOS NVD
CWE: CWE-79 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

2025-01-11

first spoke of it: Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.

NVD

Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.

What it is to other things

affects	mozilla/firefox NVD
made_by	mozilla NVD

In words only, so not counted until a person confirms one:

affects

mozilla/firefox_for_ios

NVD says “Mozilla · Firefox for iOS”

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 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	no
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*",
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                "versionEndExcluding": "134.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134."
      },
      {
        "lang": "es",
        "value": "Abrir enlaces de Javascript en una nueva pestaña manteniendo pulsada la tecla en el cliente iOS de Firefox podría provocar que un script malicioso falsifique la URL de la nueva pestaña. Esta vulnerabilidad afecta a Firefox para iOS menor que 134."
      }
    ],
    "id": "CVE-2025-23108",
    "lastModified": "2026-10-05T15:10:00.590",
    "metrics": {
      "cvssMetricV31": [
        {
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            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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    "references": [
      {
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      },
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        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

4.3

receipt

Source: NVD
Its words: 4.3
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

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  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
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                "versionEndExcluding": "134.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
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      {
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        "value": "Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134."
      },
      {
        "lang": "es",
        "value": "Abrir enlaces de Javascript en una nueva pestaña manteniendo pulsada la tecla en el cliente iOS de Firefox podría provocar que un script malicioso falsifique la URL de la nueva pestaña. Esta vulnerabilidad afecta a Firefox para iOS menor que 134."
      }
    ],
    "id": "CVE-2025-23108",
    "lastModified": "2026-10-05T15:10:00.590",
    "metrics": {
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            "integrityImpact": "LOW",
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      },
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        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

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

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
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        "nodes": [
          {
            "cpeMatch": [
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                "versionEndExcluding": "134.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134."
      },
      {
        "lang": "es",
        "value": "Abrir enlaces de Javascript en una nueva pestaña manteniendo pulsada la tecla en el cliente iOS de Firefox podría provocar que un script malicioso falsifique la URL de la nueva pestaña. Esta vulnerabilidad afecta a Firefox para iOS menor que 134."
      }
    ],
    "id": "CVE-2025-23108",
    "lastModified": "2026-10-05T15:10:00.590",
    "metrics": {
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    "references": [
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        "type": "Secondary"
      }
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  }
}

—

CWE

cwe

NVD

CWE-79

receipt

Source: NVD
Its words: CWE-79
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	CWE-79
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
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              }
            ],
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      },
      {
        "lang": "es",
        "value": "Abrir enlaces de Javascript en una nueva pestaña manteniendo pulsada la tecla en el cliente iOS de Firefox podría provocar que un script malicioso falsifique la URL de la nueva pestaña. Esta vulnerabilidad afecta a Firefox para iOS menor que 134."
      }
    ],
    "id": "CVE-2025-23108",
    "lastModified": "2026-10-05T15:10:00.590",
    "metrics": {
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            "integrityImpact": "LOW",
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      },
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        "tags": [
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        "type": "Secondary"
      }
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}

—

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 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	none
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
            ]
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        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
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                "versionEndExcluding": "134.0",
                "vulnerable": true
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            ],
            "negate": false,
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      },
      {
        "lang": "es",
        "value": "Abrir enlaces de Javascript en una nueva pestaña manteniendo pulsada la tecla en el cliente iOS de Firefox podría provocar que un script malicioso falsifique la URL de la nueva pestaña. Esta vulnerabilidad afecta a Firefox para iOS menor que 134."
      }
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    "lastModified": "2026-10-05T15:10:00.590",
    "metrics": {
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              {
                "technicalImpact": "partial"
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            "timestamp": "2025-01-13T17:44:14.905100Z",
            "version": "2.0.3"
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    "published": "2025-01-11T04:15:06.280",
    "references": [
      {
        "source": "security@mozilla.org",
        "tags": [
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          "Permissions Required"
        ],
        "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1933172"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-06/"
      }
    ],
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    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-79"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

Firefox for iOS

receipt

Source: NVD
Its words: Firefox for iOS
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox for iOS",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "134",
                "versionType": "rpm"
              }
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}

—

Severity

severity

NVD

MEDIUM

From 4.0 to 6.9.

receipt

Source: NVD
Its words: MEDIUM
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	MEDIUM
2026-10-02 12:00 UTC	—

What the source handed over

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medium

Status

status

NVD

Modified

receipt

Source: NVD
Its words: Modified
Read by: field:cve.vulnStatus
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

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}

—

Technical impact

technical_impact

NVD

partial

The attacker gains limited control, or limited information.

receipt

Source: NVD
Its words: partial
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 11:54 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:54 UTC	partial
2026-10-02 12:00 UTC	—

What the source handed over

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}

—

Vendor

vendor

NVD

Mozilla

receipt

Source: NVD
Its words: Mozilla
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

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      }
    ]
  }
}

—

Every claim, by kind

vulnerability

Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.

zetlyn/cve-nvd · 2025-01-11

automatable no cvss 4.3 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N cwe CWE-79 exploitation none product Firefox for iOS severity MEDIUM status Modified technical_impact partial vendor Mozilla

source