CVE-2026-34093

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Specials/SpecialUserRights.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://phabricator.wikimedia.org/T414547	Issue Tracking Vendor Advisory Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::
	cpe:2.3:a:mediawiki:mediawiki::::::::

History

18 May 2026, 13:53

Type	Values Removed	Values Added
First Time		Mediawiki Mediawiki mediawiki
CPE		cpe:2.3:a:mediawiki:mediawiki::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
References	~~() https://phabricator.wikimedia.org/T414547 -~~	() https://phabricator.wikimedia.org/T414547 - Issue Tracking, Vendor Advisory, Permissions Required

11 May 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-11 18:16

Updated : 2026-05-18 13:53

NVD link : CVE-2026-34093

Mitre link : CVE-2026-34093

CVE.ORG link : CVE-2026-34093

JSON object : View

Products Affected

mediawiki

mediawiki

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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