CVE-2021-45473: Fedoraproject Fedora

Medium severity, CVSS 6.1. EPSS: 1.2% chance of exploitation in the next 30 days.

In MediaWiki through 1.37, Wikibase item descriptions allow XSS, which is triggered upon a visit to an action=info URL (aka a page-information sidebar).

Affected products

• Fedoraproject Fedora: version 35 only
• Mediawiki Mediawiki: up to and including 1.3.7

Published 2021-12-24. Last modified 2026-06-17.