CVE-2026-47228 Admidio's CSRF in registration `send_login` mode resets arbitrary user passwords
A missing CSRF check in Admidio's registration module allows attackers to reset arbitrary user passwords by tricking administrators into visiting a malicious page.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-47228?
CVE-2026-47228 is a medium-severity vulnerability in admidio, published on 12 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Admidio is an open-source user management solution. `modules/registration.php` mode `send_login` regenerates a random password for `user_uuid_assigned`, stores its bcrypt hash in `adm_users.usr_password`, and emails the cleartext to that user. Every other state-changing mode in the same file (`assign_member`, `assign_user`, `delete_user`, `create_user`) calls `SecurityUtils::validateCsrfToken($_POST['adm_csrf_token'])` first; the `send_login` branch does not. Prior to version 5.0.10, page visited by a registration-administrator can issue the request as a top-level navigation, the browser sends the admin's `SameSite=Lax` cookies, and the server resets the chosen user's password without any further interaction from the admin. Version 5.0.10 fixes the issue.
Weakness: CWE-352
Which versions are affected by CVE-2026-47228?
2 open source packages ship an affected version, including admidio/admidio.
| Package | Affected | Fixed in |
|---|---|---|
admidio/admidio Packagist | All versions | 5.0.10 |
admidio/admidio Packagist | All versions | 5.0.10 |
How do I fix CVE-2026-47228?
Upgrade admidio/admidio to 5.0.10 or later.
Is CVE-2026-47228 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47228 exists.
Sources
Also known as GHSA-mx25-j3rc-6w2w.