CVE-2026-34382 Admidio: Missing CSRF Protection on Custom List Deletion in mylist_function.php

Medium 4.6 Published Updated

An attacker can trick authenticated users into deleting their list configurations, including shared organizational lists, via a missing CSRF token check.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-34382?

CVE-2026-34382 is a medium-severity vulnerability in admidio, published on 31 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Admidio is an open-source user management solution. From version 5.0.0 to before version 5.0.8, the delete mode handler in mylist_function.php permanently deletes list configurations without validating a CSRF token. An attacker who can lure an authenticated user to a malicious page can silently destroy that user's list configurations — including organization-wide shared lists when the victim holds administrator rights. This issue has been patched in version 5.0.8.

Weakness: CWE-352

Which versions are affected by CVE-2026-34382?

2 open source packages ship an affected version, including admidio/admidio. It affects 1 product.

PackageAffectedFixed in
admidio/admidio PackagistFrom 5.0.05.0.8
admidio/admidio PackagistFrom 5.0.05.0.8

Products include Admidio Admidio.

How do I fix CVE-2026-34382?

Upgrade admidio/admidio to 5.0.8 or later.

Is CVE-2026-34382 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34382 exists.

Sources

Also known as GHSA-g3mx-8jm6-rc85.

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