{"action":"Upgrade firefox-esr to 60.3.0esr-1 or later.","affected":[{"fixed":"60.3.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["60.3.0esr-1"],"id":"tcs_01M5ND024R2X911H7AZ9V83WW9","modified_at":"2026-10-23T18:02:58.588016701Z","published_at":"2019-02-28T18:29:00.807Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-12396","https://security-tracker.debian.org/tracker/CVE-2018-12396"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-12396#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-12396"}],"summary":"A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites wh"}