CVE-2020-35474: Fedoraproject Fedora

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

In MediaWiki before 1.35.1, the combination of Html::rawElement and Message::text leads to XSS because the definition of MediaWiki:recentchanges-legend-watchlistexpiry can be changed onwiki so that the output is raw HTML.

Affected products

• Fedoraproject Fedora: version 33 only
• Mediawiki Mediawiki: before 1.35.1 (fixed in 1.35.1)

Published 2020-12-18. Last modified 2026-06-17.