CVE-2026-58036

HIGH

Users API leaks whether privileged users have their user groups disabled for lack of 2FA

Title source: cna

Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiQueryAllUsers.Php, includes/Api/ApiQueryUsers.Php, includes/Permissions/PermissionManager.Php, includes/User/UserGroupManager.Php.

References (1)

Core 1

Core References

https://phabricator.wikimedia.org/T425406

Scores

CVSS v3 7.5

EPSS 0.0024

EPSS Percentile 15.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-200

Status published

Products (2)

mediawiki/mediawiki 1.46.0 rc0

Wikimedia Foundation/MediaWiki 1.46.0-rc.0 - 1.46.0

Published Jul 01, 2026

Tracked Since Jul 01, 2026