CVE-2013-2031: Gentoo Linux

Medium severity, CVSS 4.3. EPSS: 2.5% chance of exploitation in the next 30 days.

MediaWiki before 1.19.6 and 1.20.x before 1.20.5 allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by a CDATA section containing valid UTF-7 encoded sequences in a SVG file, which is then incorrectly interpreted as UTF-8 by Chrome and Firefox.

Affected products

• Gentoo Linux: any version
• Mediawiki Mediawiki: up to and including 1.19.5; version 1.1.0 only; version 1.10.0 only; version 1.10.1 only; version 1.10.2 only; version 1.10.3 only; …

Published 2013-11-18. Last modified 2026-06-16.