Cloudanix VulnDB

CVE-2026-41662

Medium · 5.2

CVSS

5.2

EPSS

0.4%

Published

May 7, 2026

CISA due date

—

The record

Admidio is an open-source user management solution. Prior to version 5.0.9, Role::stopMembership() does not verify whether removing a user from the administrator role leaves zero administrators. The deprecated Membership::stopMembership() contains this safety check, but the current code path bypasses it. Any administrator can remove the last remaining other administrator, locking the entire system out of administrative access. The exploit does not require concurrent requests; sequential removals produce the same result. This issue has been patched in version 5.0.9.

Affected packages

Ecosystem Package Introduced Fixed

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