CVE-2013-4305: Mediawiki

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

Cross-site scripting (XSS) vulnerability in contrib/example.php in the SyntaxHighlight GeSHi extension for MediaWiki, possibly as downloaded before September 2013, allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO.

Affected products

• Mediawiki Mediawiki: version 1.19.7 only; version 1.20.6 only; version 1.21.1 only

Published 2013-10-11. Last modified 2026-06-16.