CVEvulnerability

CVE-2025-53479

5.4 MEDIUM Published 2025-07-08 Modified 2026-06-17 Official page ↗
Status
Deferred
Published
2025-07-08
Last modified
2026-06-17
Assigner
c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79

Description

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 issue affects Mediawiki - CheckUser extension: from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Related

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References