admidio vulnerability

Admidio before 5.0.11 contains an insecure direct object reference vulnerability in the save_temporary mode of mylist_function.php that allows authenticated users to hijack list configurations. Attackers can enumerate global list UUIDs and overwrite admin-curated global lists or other users' private lists by supplying a list_uuid parameter, transferring ownership and demoting global lists to personal configurations.

Published 3 Aug 2026Updated 9 Sep 20263 sources
CVSS 5.3

What happened

Admidio before 5.0.11 contains an insecure direct object reference vulnerability in the save_temporary mode of mylist_function.php that allows authenticated users to hijack list configurations. Attackers can enumerate global list UUIDs and overwrite admin-curated global lists or other users' private lists by supplying a list_uuid parameter, transferring ownership and demoting global lists to personal configurations.

Affected versions

admidio: before 5.0.11 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.