CVE-2023-25729 Information

Description

Permission prompts for opening external schemes were only shown for ContentPrincipals resulting in extensions being able to open them without user interaction via ExpandedPrincipals. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system. This vulnerability affects Firefox < 110 Thunderbird < 102.8 and Firefox ESR < 102.8.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1792138 https://www.mozilla.org/security/advisories/mfsa2023-05/ https://www.mozilla.org/security/advisories/mfsa2023-07/ https://www.mozilla.org/security/advisories/mfsa2023-06/