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.
Metrics
CVSS 3.1 6.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | >= unspecified, < 133 |
| Mozilla | Firefox ESR | >= unspecified, < 128.5 |
| Mozilla | Firefox ESR | >= unspecified, < 115.18 |
| Mozilla | Thunderbird | >= unspecified, < 133 |
| Mozilla | Thunderbird | >= unspecified, < 128.5 |
| Mozilla | Thunderbird | >= unspecified, < 115.18 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1924167Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2024-63/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-64/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-65/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-67/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-68/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-70/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/11/msg00029.html
Timeline
- Published
- Nov 26, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified