CVE-2026-82658 Admidio before 5.0.12 Broken Access Control via profile_function.php

Medium 5.3 Published Updated

Authenticated low-privilege users can bypass authorization to read other users' future role memberships in Admidio.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82658?

CVE-2026-82658 is a medium-severity missing authorization vulnerability in admidio, published on 30 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Admidio versions before 5.0.12 contain a broken access control vulnerability in profile_function.php that allows authenticated low-privilege users to read another user's future role memberships. Attackers can bypass profile-level authorization by directly calling the reload_future_memberships endpoint with a victim's user UUID to disclose sensitive membership information.

Weakness: CWE-285

Which versions are affected by CVE-2026-82658?

How do I fix CVE-2026-82658?

No fix has been published for CVE-2026-82658 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-82658 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82658 exists.

Sources

Also known as GHSA-4p3x-3rxj-v7c4, GHSA-7mr9-2w6x-hw8r.

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