#VU113743 Permissions, Privileges, and Access Controls in MediaWiki - CVE-2025-6589

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Main Vulnerability Database Vulnerabilities #VU113743

#VU113743 Permissions, Privileges, and Access Controls in MediaWiki - CVE-2025-6589

Published: August 7, 2025


Vulnerability identifier: #VU113743
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-6589
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MediaWiki
Software vendor:
MediaWiki.org

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to incorrect implementation of the Special:BlockList feature. A remote user blocked with a hideuser block on a wiki with MultiBlocks enabled can view hidden usernames. 


Remediation

Install updates from vendor's website.

External links