CVE-2015-8622: Mediawiki

Medium severity, CVSS 6.1. EPSS: 1.5% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1, when is configured with a relative URL, allows remote authenticated users to inject arbitrary web script or HTML via wikitext, as demonstrated by a wikilink to a page named "javascript:alert('XSS!')."

Affected products

• Mediawiki Mediawiki: up to and including 1.23.11; version 1.24.0 only; version 1.24.1 only; version 1.24.2 only; version 1.24.3 only; version 1.24.4 only; …

Published 2017-03-23. Last modified 2026-06-17.