{"action":"Upgrade mediawiki to 1:1.35.0-1 or later.","affected":[{"fixed":"1:1.35.0-1","introduced":"0"}],"component":"mediawiki","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:1.35.0-1"],"id":"tcs_01M5NEWPZXNHK0N2SFFFABB948","modified_at":"2026-09-11T11:02:30.043287082Z","published_at":"2020-09-27T21:15:12.563Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-25812","https://security-tracker.debian.org/tracker/CVE-2020-25812"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-25812#Debian:13/mediawiki","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-25812"}],"summary":"An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a"}