CVE-2023-4052 Information

Description

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. This bug only affects Firefox on Windows. Other operating systems are unaffected. This vulnerability affects Firefox < 116 and Firefox ESR < 115.1.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1824420 https://www.mozilla.org/security/advisories/mfsa2023-31/ https://www.mozilla.org/security/advisories/mfsa2023-29/