Description (CNA)
Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an `embed` tag. This could have bypassed website security checks that restricted which domains users were allowed to embed. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Mozilla / Firefox | unaffected 128.12 through 128.*; unaffected 140 through * |
| Mozilla / Thunderbird | unaffected 128.12 through 128.*; unaffected 140 through * |
CWE
No CWE identifiers supplied.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1970658
- https://www.mozilla.org/security/advisories/mfsa2025-51/
- https://www.mozilla.org/security/advisories/mfsa2025-53/
- https://www.mozilla.org/security/advisories/mfsa2025-54/
- https://www.mozilla.org/security/advisories/mfsa2025-55/
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.