What’s Vulnerable › Vulnerabilities

CVE-2024-11694

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-26 · updated 2026-06-17
• Weakness: CWE-79

Description

Enhanced Tracking Protection's Strict mode may have inadvertently allowed a CSP `frame-src` bypass and DOM-based XSS through the Google SafeFrame shim in the Web Compatibility extension. This issue could have exposed users to malicious frames masquerading as legitimate content. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Firefox ESR < 115.18, Thunderbird < 133, Thunderbird < 128.5, and Thunderbird < 115.18.

Affected products

• Mozilla Firefox: before 115.8.0; before 133.0; from 116.0 before 128.5.0 — fixed in 115.8.0, 128.5.0, 133.0
• Mozilla Thunderbird: before 115.18.0; from 116.0 before 128.5.0; from 129.0 before 133.0 — fixed in 115.18.0, 128.5.0, 133.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 115.8.0, 128.5.0, 133.0; Mozilla Thunderbird 115.18.0, 128.5.0, 133.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1924167
• https://www.mozilla.org/security/advisories/mfsa2024-63/
• https://www.mozilla.org/security/advisories/mfsa2024-64/
• https://www.mozilla.org/security/advisories/mfsa2024-65/
• https://www.mozilla.org/security/advisories/mfsa2024-67/
• https://www.mozilla.org/security/advisories/mfsa2024-68/
• https://www.mozilla.org/security/advisories/mfsa2024-70/
• https://lists.debian.org/debian-lts-announce/2024/11/msg00029.html

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