CVE-2023-5729 Information

Description

A malicious web site can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been leveraged in a spoofing attack. This vulnerability affects Firefox < 119.

Reference

https://www.mozilla.org/security/advisories/mfsa2023-45/ https://bugzilla.mozilla.org/show_bug.cgi?id=1823720