The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.
[ { "events": [ { "introduced": "0" }, { "fixed": "135.0" } ] }, { "events": [ { "introduced": "131.0" }, { "fixed": "135.0" } ] } ]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-1019.json"