CVE-2026-34381 Admidio: Unauthenticated Access to Role-Restricted documents via neutralized .htaccess
Unauthenticated attackers can access role-restricted documents in Admidio Docker deployments due to ignored .htaccess files, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-34381?
CVE-2026-34381 is a high-severity missing authorization vulnerability in admidio, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Admidio is an open-source user management solution. From version 5.0.0 to before version 5.0.8, Admidio relies on adm_my_files/.htaccess to deny direct HTTP access to uploaded documents. The Docker image ships with AllowOverride None in the Apache configuration, which causes Apache to silently ignore all .htaccess files. As a result, any file uploaded to the documents module regardless of the role-based permissions configured in the UI, is directly accessible over HTTP without authentication by anyone who knows the file path. The file path is disclosed in the upload response JSON. This issue has been patched in version 5.0.8.
Weakness: CWE-284
Which versions are affected by CVE-2026-34381?
2 open source packages ship an affected version, including admidio/admidio. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
admidio/admidio Packagist | From 5.0.0 | 5.0.8 |
admidio/admidio Packagist | From 5.0.0 | 5.0.8 |
Products include Admidio Admidio.
How do I fix CVE-2026-34381?
Upgrade admidio/admidio to 5.0.8 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-34381 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34381 exists.
Other vulnerabilities in admidio
- CVE-2024-37906 Admidio has Blind SQL Injection in ecard_send.php
- CVE-2021-32630 Various
- CVE-2026-32817 Admidio is Missing Authorization and CSRF Protection on Document and Folder Deletion
- CVE-2024-38529 Admidio Vulnerable to RCE via Arbitrary File Upload in Message Attachment
- CVE-2026-32756 Admidio: Unrestricted File Upload via CSRF Token Validation Bypass in Documents & Files Module
Sources
Also known as GHSA-7fh7-8xqm-3g88.