Vulnerability Monitor

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CVE-2025-0237

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 < 128.6.

Published

2025-01-07T16:15:38.323

Last Modified

2025-04-03T16:29:29.923

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

Weaknesses

Type: Secondary
CWE-863

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 128.6.0	Yes
Application	mozilla	firefox	< 134.0	Yes
Application	mozilla	thunderbird	< 128.6.0	Yes
Application	mozilla	thunderbird	< 134.0	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1915257 Issue Tracking, Permissions Required ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-01/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-02/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-04/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-05/ Vendor Advisory ([email protected])