CVE-2026-34384

4.5 MEDIUM 0.2% exploit odds Fix listed Auth & access Web app

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data tampering.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-03-31 21:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-06 22:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.2% in the next 30 days (EPSS).
Severity: 4.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-03-31 21:16 UTC
Last modified: 2026-10-06 22:10 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-352 · Cross-site request forgery
Record status: Analyzed

Affected

Admidio < 5.0.8

Attack profile CVSS 3.1 · 4.5

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-34384.md and follow it. Check whether this project is affected by CVE-2026-34384. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record