Detections
Analytics
CVE-2025-6430
medium
Description
When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
References
https://www.mozilla.org/security/advisories/mfsa2025-55/
https://www.mozilla.org/security/advisories/mfsa2025-54/
https://www.mozilla.org/security/advisories/mfsa2025-53/
https://www.mozilla.org/security/advisories/mfsa2025-51/
https://lists.debian.org/debian-lts-announce/2025/07/msg00002.html
https://lists.debian.org/debian-lts-announce/2025/06/msg00029.html