Admidio up to 5.0.9 Send Login modules/registration.php adm_csrf_token cross-site request forgery

Summaryinfo

A vulnerability marked as problematic has been reported in Admidio up to 5.0.9. This affects an unknown function of the file modules/registration.php of the component Send Login. Performing a manipulation of the argument adm_csrf_token results in cross-site request forgery. This vulnerability is identified as CVE-2026-47228. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Admidio up to 5.0.9. This affects an unknown code of the file modules/registration.php of the component Send Login. The manipulation of the argument adm_csrf_token with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-47228 since 05/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

By approaching the search of inurl:modules/registration.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.0.10 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Admidio

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9

Website

• Product: https://github.com/Admidio/admidio/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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