CVE-2025-0237

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, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird ESR < 128.6.

References

https://www.mozilla.org/security/advisories/mfsa2025-05/

https://www.mozilla.org/security/advisories/mfsa2025-04/

https://www.mozilla.org/security/advisories/mfsa2025-02/

https://www.mozilla.org/security/advisories/mfsa2025-01/

https://bugzilla.mozilla.org/show_bug.cgi?id=1915257

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3