The timing of a button click causing a popup to disappear was approximately the same length as 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 ESR < 115.6 and Firefox < 121.
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1863863 | issue tracking permissions required |
| https://www.mozilla.org/security/advisories/mfsa2023-54/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2023-56/ | vendor advisory |
| https://www.debian.org/security/2023/dsa-5581 | third party advisory |
| https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html | third party advisory mailing list |
| https://security.gentoo.org/glsa/202401-10 | third party advisory |