VYPR

CheckUser extension

by Wikimedia Foundation

CVEs (1)

  • CVE-2025-53479MedJul 8, 2025
    risk 0.35cvss 5.4epss 0.00

    The CheckUser extension’s Special:CheckUser interface is vulnerable to reflected XSS via the rev-deleted-user message. This message is rendered without proper escaping, making it possible to inject JavaScript through the uselang=x-xss language override mechanism. This…