GHSA-3h65-3mjq-qqj8
GitHub Security Advisory
⚠ Unreviewed
CRITICAL
Has CVE
Advisory Details
WebExtensions with the "ActiveTab" permission are able to access frames hosted within the active tab even if the frames are cross-origin. Malicious extensions can inject frames from arbitrary origins into the loaded page and then interact with them, bypassing same-origin user expectations with this permission. This vulnerability affects Firefox < 58.
Related CVEs
Key Information
9.0
/10
Dataset
Last updated: September 14, 2025 6:31 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.