{"action":"Upgrade thunderbird to 1:91.5.0-1 or later.","affected":[{"fixed":"1:91.5.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:91.5.0-1"],"id":"tcs_01M5NGFPMW6P41H8RC7ZPY7JMW","modified_at":"2026-10-15T08:00:57.118026595Z","published_at":"2022-12-22T20:15:15.157Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2022-22743","https://security-tracker.debian.org/tracker/CVE-2022-22743"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2022-22743#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2022-22743"}],"summary":"When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR"}