Vulnerability Description
The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 120.0 |
| Mozilla | Firefox Esr | < 115.5.0 |
| Mozilla | Thunderbird | < 115.5 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1857430Issue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
- https://www.debian.org/security/2023/dsa-5561Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1857430Issue TrackingPermissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
- https://www.debian.org/security/2023/dsa-5561Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/Release NotesVendor Advisory
FAQ
What is CVE-2023-6206?
CVE-2023-6206 is a vulnerability with a CVSS score of 5.4 (MEDIUM). The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click ...
How severe is CVE-2023-6206?
CVE-2023-6206 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-6206?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Debian Debian Linux.