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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...
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.
Classification
CVE ID: CVE-2025-0237
Affected Products
Vendor: Mozilla
Product: Firefox
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 17.83% (scored less or equal to compared to others)
EPSS Date: 2025-02-05 (when was this score calculated)
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1915257https://www.mozilla.org/security/advisories/mfsa2025-01/
https://www.mozilla.org/security/advisories/mfsa2025-02/