{"action":"Upgrade thunderbird to 1:52.8.0-1 or later.","affected":[{"fixed":"1:52.8.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:52.8.0-1"],"id":"tcs_01M5NDEFSA02ARGXMDAP8MJ19G","modified_at":"2026-10-23T18:03:21.657373052Z","published_at":"2018-06-11T21:29:15.767Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-5168","https://security-tracker.debian.org/tracker/CVE-2018-5168"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-5168#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-5168"}],"summary":"Sites can bypass security checks on permissions to install lightweight themes by manipulating the \"baseURI\" property of the theme element. This could allow a malicious site to install a theme without"}