{"action":"Upgrade mediawiki to 1:1.35.1-1 or later.","affected":[{"fixed":"1:1.35.1-1","introduced":"0"}],"component":"mediawiki","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:1.35.1-1"],"id":"tcs_01M5NF1D16ZJBQSJCDDTMHAD3D","modified_at":"2026-09-11T11:02:45.016354480Z","published_at":"2020-12-18T08:15:15.293Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-35478","https://security-tracker.debian.org/tracker/CVE-2020-35478"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-35478#Debian:13/mediawiki","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-35478"}],"summary":"MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. MediaWiki:blanknamespace potentially can be output as raw HTML with SCRIPT tags via LogFormatter::makePageLink(). This affects MediaWiki 1"}