CVE-2025-3469: Wikimedia Foundation Mediawiki

None severity, CVSS 0.0. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLMultiSelectField.Php. This issue affects MediaWiki: before 1.39.12, 1.42.6, 1.43.1.

Affected products

• Wikimedia Foundation Mediawiki

Published 2025-04-10. Last modified 2026-06-17.