CVE-2025-53500: Malvineous Masseditregex

Medium severity, CVSS 5.6. 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 - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Affected products

• Malvineous Masseditregex: affected versions not specified

Published 2025-07-03. Last modified 2026-06-17.