Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web content that tried to use those interfaces would not be able to use them with elevated privileges, but their presence would indicate certain browser features had been used, such as when a user opened the Dev Tools console. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.
The product attempts to drop privileges but does not check or incorrectly checks to see if the drop succeeded.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1906744 | issue tracking permissions required |
| https://www.mozilla.org/security/advisories/mfsa2024-39/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-40/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-41/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-43/ | |
| https://www.mozilla.org/security/advisories/mfsa2024-44/ |