CVE-2026-58517

Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass. This issue affects Mediawiki - WikiLambda Extension: from * before 1.43.9,1.44.6,1.45.4.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gerrit.wikimedia.org/r/c/1305376	Issue Tracking
https://phabricator.wikimedia.org/T428833	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

10 Jul 2026, 13:50

Type	Values Removed	Values Added
References	~~() https://phabricator.wikimedia.org/T428833 - Issue Tracking, Third Party Advisory~~	() https://phabricator.wikimedia.org/T428833 - Issue Tracking, Vendor Advisory

09 Jul 2026, 18:42

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3
References	~~() https://gerrit.wikimedia.org/r/c/1305376 -~~	() https://gerrit.wikimedia.org/r/c/1305376 - Issue Tracking
References	~~() https://phabricator.wikimedia.org/T428833 -~~	() https://phabricator.wikimedia.org/T428833 - Issue Tracking, Third Party Advisory
CPE		cpe:2.3:a:mediawiki:mediawiki::::::::
First Time		Mediawiki mediawiki Mediawiki

01 Jul 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 19:16

Updated : 2026-07-10 13:50

NVD link : CVE-2026-58517

Mitre link : CVE-2026-58517

CVE.ORG link : CVE-2026-58517

JSON object : View

Products Affected

mediawiki

mediawiki

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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