{"action":"Upgrade mediawiki to 1:1.43.5+dfsg-1 or later.","affected":[{"fixed":"1:1.43.5+dfsg-1","introduced":"0"}],"component":"mediawiki","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:1.43.5+dfsg-1"],"id":"tcs_01M5NMVFAYKDM5HT7Y24EC9XCW","modified_at":"2026-09-01T20:05:40.383656403Z","published_at":"2026-02-03T01:15:57.483Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-11261","https://security-tracker.debian.org/tracker/CVE-2025-11261"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-11261#Debian:14/mediawiki","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-11261"}],"summary":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resourc"}