CVE-2012-4377: Mediawiki

Medium severity, CVSS 6.1. EPSS: 1.6% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.18.5 and 1.19.x before 1.19.2 allows remote attackers to inject arbitrary web script or HTML via a File: link to a nonexistent image.

Affected products

• Mediawiki Mediawiki: up to and including 1.18.4; version 1.19.0 only; version 1.19.1 only

Published 2017-10-26. Last modified 2026-06-16.