CVE-2013-6451: Mediawiki

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in MediaWiki 1.19.9 before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to inject arbitrary web script or HTML via unspecified CSS values.

Affected products

• Mediawiki Mediawiki: from 1.19.9, before 1.19.10 (fixed in 1.19.10); from 1.20.0, before 1.21.4 (fixed in 1.21.4); from 1.22.0, before 1.22.1 (fixed in 1.22.1)

Published 2020-01-28. Last modified 2026-06-17.