{"id":"DEBIAN-CVE-2021-30458","details":"An issue was discovered in Wikimedia Parsoid before 0.11.1 and 0.12.x before 0.12.2. An attacker can send crafted wikitext that Utils/WTUtils.php will transform by using a \u003cmeta\u003e tag, bypassing sanitization steps, and potentially allowing for XSS.","modified":"2026-09-01T20:04:27.264044315Z","published":"2021-04-09T07:15:16.340Z","upstream":["CVE-2021-30458"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-30458"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Debian:12","purl":"pkg:deb/debian/mediawiki?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-30458.json"}},{"package":{"name":"mediawiki","ecosystem":"Debian:13","purl":"pkg:deb/debian/mediawiki?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-30458.json"}},{"package":{"name":"mediawiki","ecosystem":"Debian:14","purl":"pkg:deb/debian/mediawiki?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-30458.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}