Vulnerability in MediaWiki by Wikimedia Foundation
CVE-2026-58029

5.3MEDIUM

Key Information:

Vendor

Wikimedia Foundation

Status
Mediawiki
Vendor
CVE Published:
1 July 2026

What is CVE-2026-58029?

A vulnerability exists within MediaWiki concerning several API endpoints responsible for managing authentication data. Specifically, files such as ApiChangeAuthenticationData.Php, ApiLinkAccount.Php, and others related to account management may be improperly handling user data. This could potentially allow unauthorized access or manipulation of account information, impacting the integrity and security of user accounts. Users running affected versions should update to version 1.46.0 or later to mitigate this risk.

Affected Version(s)

MediaWiki * < 1.46.0, 1.45.4, 1.44.6, 1.43.9

References

https://phabricator.wikimedia.org/T422676

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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