Disclosure summary
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.
Source-reported weakness categories
CWE-352
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-34384
Open original source · Updated Oct 06, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| admidio | admidio | * {"versionEndExcluding":"5.0.8"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Patch
- github.com — Exploit, Mitigation, Vendor Advisory
- github.com — Exploit, Mitigation, Vendor Advisory
PUBLISHED 2026-03-31T17:16:30-04:00
MODIFIED 2026-10-06T18:10:00-04:00
INGESTED 2026-10-08T12:40:21-04:00