4.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
20.6%
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.
bugzilla.mozilla.org/show_bug.cgi?id=1823720
security.gentoo.org/glsa/202401-10
www.mozilla.org/security/advisories/mfsa2023-45/