CVE-2025-53479

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.
Configurations

No configuration.

History

10 Jul 2025, 14:15

Type Values Removed Values Added
References () https://phabricator.wikimedia.org/T394693 - () https://phabricator.wikimedia.org/T394693 -
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.4

09 Jul 2025, 11:15

Type Values Removed Values Added
Summary
  • (es) La interfaz Special:CheckUser de la extensión CheckUser es vulnerable a XSS reflejado mediante el mensaje rev-deleted-user. Este mensaje se procesa sin el escape adecuado, lo que permite inyectar JavaScript mediante el mecanismo de anulación del lenguaje uselang=x-xss. Este problema afecta a Mediawiki - extensión CheckUser: desde la versión 1.39.X hasta la 1.39.13, desde la versión 1.42.X hasta la 1.42.7, desde la versión 1.43.X hasta la 1.43.2.
Summary (en) 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 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2. (en) 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.

08 Jul 2025, 18:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-07-08 18:15

Updated : 2025-07-10 14:15


NVD link : CVE-2025-53479

Mitre link : CVE-2025-53479

CVE.ORG link : CVE-2025-53479


JSON object : View

Products Affected

No product.

CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')