Astra Linux – Vulnerability in Firefox, Thunderbird

The Enhanced Tracking Protection’s Strict mode may have inadvertently allowed a CSP frame-src bypass and DOM-based XSS attacks through the Google SafeFrame shim in the Web Compatibility extension. This issue could have exposed users to malicious frames disguised as legitimate content. This...

firefox: thunderbird: CSP Bypass and XSS Exposure via Web Compatibility Shims

The Mozilla Foundation's Security Advisory: Enhanced Tracking Protection's Strict mode may inadvertently allow a CSP frame-src bypass and DOM-based cross-site scripting XSS through the Google SafeFrame shim in the Web Compatibility extension. This issue could expose users to malicious frames...