0.001 Low
EPSS
Percentile
42.4%
firefox is missing security UI. It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user.
bugzilla.mozilla.org/show_bug.cgi?id=1656741
bugzilla.redhat.com/show_bug.cgi?id=1898733
www.mozilla.org/security/advisories/mfsa2020-50/
www.mozilla.org/security/advisories/mfsa2020-51/
www.mozilla.org/security/advisories/mfsa2020-52/