{"action":"Upgrade mediawiki to 1:1.35.5-1 or later.","affected":[{"fixed":"1:1.35.5-1","introduced":"0"}],"component":"mediawiki","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:1.35.5-1"],"id":"tcs_01M5NG2E6BCBNDR4NHMRQ6KM9H","modified_at":"2026-10-23T18:04:00.589261481Z","published_at":"2021-12-20T09:15:06.770Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-44858","https://security-tracker.debian.org/tracker/CVE-2021-44858"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-44858#Debian:13/mediawiki","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-44858"}],"summary":"An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=edit&undo= followed by action=mcrundo and action=mcrrestore to view pri"}