🛡️ CVE-2026-41662
🟡 CVSS 5.2 — Medium ✅ No Known Exploit CWE-754 NVD
5.2
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Medium
CVSS Score 5.2
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:H
CWE CWE-754
Public Exploit ✅ No
Source NVD
Published 2026-04-29
Updated 2026-06-02
Modified 2026-05-08
Fix URL N/A

Affected Packages

Software From version Fixed in
admidio/admidio — 5.0.9
unknown — —

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