An attacker could cause a select dropdown to be shown over another tab; this could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "133.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox" }, { "binary_version": "133.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-dev" }, { "binary_version": "133.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "133.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-mozsymbols" } ] }