What’s Vulnerable › Vulnerabilities

CVE-2026-109329: Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 Cross-Organization Access Control Bypass via members_assignment.php

• Severity: medium (CVSS 6.5 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: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-639

Description

Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 contains a broken access control vulnerability that allows role administrators to assign users to roles in other organizations. Attackers can submit crafted assign requests to members_assignment.php with a foreign role UUID to gain privileged membership, log into that organization, and edit its user profiles.

Affected products

• admidio: from 4.3.2 through 4.3.17; from 5.0.0 before 5.0.15 — fixed in 5.0.15

How to fix

Upgrade to a fixed version: admidio 5.0.15. Check the vendor advisory for mitigations.

References

• https://github.com/Admidio/admidio/security/advisories/GHSA-ggch-5cpv-rvqx
• https://www.vulncheck.com/advisories/admidio-4.3.2-through-4.3.17-and-5.0.0-before-5.0.15-cross-organization-access-control-bypass-via-members-assignment-php

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