CVE-2026-58036

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

CVSS 2.1 LOWEPSS 0.2%CWE-200

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 2.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Jul 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected products

Wikimedia Foundation · MediaWiki

References

https://phabricator.wikimedia.org/T425406