CVE-2025-61642: Mediawiki

Medium severity, CVSS 6.1. EPSS: 0.3% 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/CodexHTMLForm.Php, includes/htmlform/fields/HTMLButtonField.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.

Affected products

• Mediawiki Mediawiki: before 1.39.14 (fixed in 1.39.14); from 1.43.0, before 1.43.4 (fixed in 1.43.4); version 1.44.0 only

Published 2026-02-03. Last modified 2026-06-17.