Admidio: Missing CSRF Protection on Registration Approval Actions_CVE-2026-34384

4.5 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N

Description

Admidio is an open-source user management solution. Prior to version 5.0.8, the create_user, assign_member, and assign_user action modes in modules/registration.php approve pending user registrations via GET request without validating a CSRF token. Unlike the delete_user mode in the same file (which correctly validates the token), these three approval actions read their parameters from $_GET and perform irreversible state changes without any protection. An attacker who has submitted a pending registration can extract their own user UUID from the registration confirmation email URL, then trick any user with the rol_approve_users right into visiting a crafted URL that automatically approves the registration. This bypasses the manual registration approval workflow entirely. This issue has been patched in version 5.0.8.

Basic Information

ID CVE-2026-34384

Source GitHub_M

Published Mar 31, 2026 at 20:34

Modified Apr 1, 2026 at 15:53

Affected Product

Vendor Admidio

Product admidio

Version < 5.0.8

Affected Versions Admidio admidio < 5.0.8

CWE Classification

CWE-352

References

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    "published": "2026-03-31T20:34:37.789Z",
    "modified": "2026-04-01T15:53:47.600Z",
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