Quick answers
- Is CVE-2026-109329 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-109329 being exploited in the wild.
- How severe is CVE-2026-109329?
- Medium severity, with a CVSS score of 6.5, published 12 October 2026.
- Which products and versions are affected?
- Admidio 4.3.2 through 4.3.17, 5.0.0 before 5.0.15.
- Is there a fix for CVE-2026-109329?
- Yes: fixed in Admidio 4.3.18, 5.0.15. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-109329 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-109329?
- Check whether you run Admidio at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: Admidio 4.3.18, 5.0.15
Technical details
The vulnerability is a broken access control flaw in members_assignment.php that fails to verify whether a target role belongs to the attacker's organization before allowing membership assignment. An authenticated role administrator can craft requests with a foreign role UUID to assign themselves or other users to privileged roles in different organizations, bypassing organization-scoped authorization checks. Once assigned, the attacker can log into the target organization and exercise the injected role's privileges, such as user profile editing.
Affected products
- Admidio Admidio 4.3.2 through 4.3.17, 5.0.0 before 5.0.15
Timeline
- 2026-09-22: disclosed
- 2026-10-12: advisory