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.

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: 0.003 (24.4th 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)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (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.