GHSA-2776-h8x3-vrr7
GitHub Security Advisory
⚠ Unreviewed
MODERATE
Has CVE
Advisory Details
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.
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: July 26, 2025 6:37 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.