CVE-2025-0237 Information

Description

The WebChannel API which is used to transport various information across processes did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. This vulnerability affects Firefox < 134 and Firefox ESR < 128.6.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1915257 https://www.mozilla.org/security/advisories/mfsa2025-01/ https://www.mozilla.org/security/advisories/mfsa2025-02/