CVE-2020-6810 (NVD)

2020-03-25

After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.

Products Firefox
Type Authentication Bypass by Spoofing (CWE-290)
First patch - None (likely due to unavailable code)
Links https://bugzilla.mozilla.org/show_bug.cgi?id=1432856
https://www.mozilla.org/security/advisories/mfsa2020-08/