Auth bypass in Admidio
CVE-2026-41657
Admidio is an open-source user management solution. Prior to version 5.0.9, the contacts_data.php endpoint uses a weaker permission check (isAdministratorUsers(), requiring only rol_edit_user=true) than the frontend UI (contacts.php) which…
Vulnerability class: Broken Access Control
EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Admidio — versions < 5.0.9
Weakness classification (CWE)
References
- https://github.com/Admidio/admidio/releases/tag/v5.0.9 (x_refsource_MISC)
- https://github.com/Admidio/admidio/security/advisories/GHSA-g8p8-94f2-28gr (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-41657?
- CVE-2026-41657 is a medium-severity vulnerability in Admidio, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2026-05-07.
- How severe is CVE-2026-41657?
- Medium severity. CVSS v3 base score is 4.9 out of 10.