CVE-2013-6454: Mediawiki

Medium severity, CVSS 4.3. EPSS: 1.5% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in MediaWiki 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 a -o-link attribute.

Affected products

• Mediawiki Mediawiki: version 1.21 only; version 1.21.1 only; version 1.21.2 only; version 1.21.3 only; version 1.22.0 only; up to and including 1.19.9; …

Published 2014-05-12. Last modified 2026-06-17.