CVE-2026-58029

Full Account Takeover from BotPasswords and OAuth via action=changeauthenticationdata

State: Published
Severity: 5.3 Medium
Published: Jul 1, 2026
Updated: Jul 1, 2026
Reserved: Jun 27, 2026

Description

Vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Api/ApiChangeAuthenticationData.Php, includes/Api/ApiLinkAccount.Php, includes/Api/ApiRemoveAuthenticationData.Php, includes/Specials/SpecialLinkAccounts.Php, includes/Specials/SpecialUnlinkAccounts.Php.

This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N	wikimedia-foundation

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
MediaWikiWikimedia Foundation	before 1.46.0, 1.45.4, 1.44.6, 1.43.9Affected

References

https://phabricator.wikimedia.org/T422676

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