CVE-2026-41656

Admidio is an open-source user management solution. Prior to version 5.0.9, the add mode in modules/documents-files.php accepts a name parameter validated only as 'string' type (HTML encoding), allowing path traversal characters (../) to pass through unfiltered. Combined with the absence of CSRF protection on this endpoint and SameSite=Lax session cookies, a low-privileged attacker can trick a documents administrator into clicking a crafted link that registers an arbitrary server file (e.g., install/config.php containing database credentials) into a documents folder accessible to the attacker. This issue has been patched in version 5.0.9.

• CWE-22

• https://github.com/Admidio/admidio/releases/tag/v5.0.9
• https://github.com/Admidio/admidio/security/advisories/GHSA-m9h6-8pqm-xrhf
• https://github.com/Admidio/admidio/security/advisories/GHSA-m9h6-8pqm-xrhf

Published

May 7, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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