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

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-30 · updated 2026-09-02
Weakness: CWE-285

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.

Affected products

admidio: before 5.0.12 — fixed in 5.0.12

How to fix

Upgrade to a fixed version: admidio 5.0.12. Check the vendor advisory for mitigations.

References

https://github.com/Admidio/admidio/security/advisories/GHSA-4p3x-3rxj-v7c4
https://www.vulncheck.com/advisories/admidio-before-5.0.12-broken-access-control-via-profile-function-php
https://github.com/Admidio/admidio/security/advisories/GHSA-4p3x-3rxj-v7c4

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