CVE-2026-13707

Session fixation vulnerability in Wikimedia Foundation OAuth. This vulnerability is associated with program files src/Backend/MWOAuthServer.Php. This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://phabricator.wikimedia.org/T428324	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::::::::
	cpe:2.3:a:mediawiki:mediawiki:1.46.0:rc0::::::

History

13 Jul 2026, 15:29

Type	Values Removed	Values Added
First Time		Mediawiki mediawiki Mediawiki
CPE		cpe:2.3:a:mediawiki:mediawiki:1.46.0:rc0:::::: cpe:2.3:a:mediawiki:mediawiki::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.6
References	~~() https://phabricator.wikimedia.org/T428324 -~~	() https://phabricator.wikimedia.org/T428324 - Permissions Required

01 Jul 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 16:16

Updated : 2026-07-13 15:29

NVD link : CVE-2026-13707

Mitre link : CVE-2026-13707

CVE.ORG link : CVE-2026-13707

JSON object : View

Products Affected

mediawiki

mediawiki

CWE

CWE-384

Session Fixation

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