CVE-2026-41657
MEDIUM EPSS 24.0%
Published May 7, 20261mo ago · Modified Jun 17, 20262w ago
4.9 CVSS 3.1
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
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 correctly requires the stronger isAdministrator() (requiring rol_administrator=true) and the contacts_show_all system setting. A user manager who is not a full administrator can directly request contacts_data.php?mem_show_filter=3 to retrieve all user records across all organizations in the Admidio instance, bypassing multi-tenant organization isolation. This issue has been patched in version 5.0.9.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
24.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
References 2
- github.com https://github.com/Admidio/admidio/releases/tag/v5.0.9
- github.com https://github.com/Admidio/admidio/security/advisories/GHSA-g8p8-94f2-28gr
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.