#VU113744 Improper access control in MediaWiki - CVE-2025-6590

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Main Vulnerability Database Vulnerabilities #VU113744

#VU113744 Improper access control in MediaWiki - CVE-2025-6590

Published: August 7, 2025


Vulnerability identifier: #VU113744
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-6590
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MediaWiki
Software vendor:
MediaWiki.org

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper validation of the usernames. A logged-out user can reveal hidden page contents through transclusion, e.g., "{{:Private page}}".


Remediation

Install updates from vendor's website.

External links