Medium severity · published Oct 12, 2026
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
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AD
admidio · Admidio
4.3.2 through 4.3.17; 5.0.0 before 5.0.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109329
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109329
vendor-advisory
https://github.com/Admidio/admidio/security/advisories/GHSA-ggch-5cpv-rvqx
third-party-advisory
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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