CVE-2022-22741

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 96 Firefox ESR versions prior to 91.5 Thunderbird versions prior to 91.5

Description The issue is related to incorrect restriction of visualizable layers or frames due to a resizing error of a popup window when requesting fullscreen access. This could allow a remote attacker to prevent the browser from exiting fullscreen mode and conduct a spoofing attack.

Recommendations For Firefox versions prior to 96, update to version 96 or later to resolve the issue. For Firefox ESR versions prior to 91.5, update to version 91.5 or later to resolve the issue. For Thunderbird versions prior to 91.5, update to version 91.5 or later to resolve the issue.