CVE-2026-58029: Full Account Takeover from BotPasswords and OAuth via action=changeauthenticationdata

Published Jul 1, 2026
·
Updated

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.

Affected Software

5 affected components
Wikimedia Foundation MediaWiki<1.46.0, =1.45.4, =1.44.6, =1.43.9
MediaWiki MediaWiki>=1.43.0<1.43.9
MediaWiki MediaWiki>=1.44.0<1.44.6
MediaWiki MediaWiki>=1.45.0<1.45.4
MediaWiki MediaWiki=1.46.0-rc0

Event History

Jul 1, 2026
CVE Published
via MITRE·03:19 PM
Data Sourced
via MITRE·03:19 PM
Description
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-58029?

CVE-2026-58029 has a medium severity score of 5.3 according to the CVSS.

2

How do I fix CVE-2026-58029?

To mitigate CVE-2026-58029, update your Wikimedia Foundation MediaWiki software to the latest patched version.

3

What systems are affected by CVE-2026-58029?

CVE-2026-58029 affects the Wikimedia Foundation MediaWiki software.

4

What kind of attack does CVE-2026-58029 enable?

CVE-2026-58029 allows for full account takeover through vulnerabilities in BotPasswords and OAuth mechanisms.

5

When was CVE-2026-58029 published?

CVE-2026-58029 was published on July 1, 2026.

Company

Resources

Contact

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