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

State: Published
Severity: 8.5 High
Published: Oct 12, 2026
Updated: Oct 13, 2026
Reserved: Oct 12, 2026

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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.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N	VulnCheck

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
admidioAdmidio	4.3.2 through 4.3.17Affected 5.0.0 to before 5.0.15Affected 5.0.15Not affected

References

GitHub Security Advisory (GHSA-ggch-5cpv-rvqx)vendor-advisory
VulnCheck Advisory: Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 Cross-Organization Access Control Bypass via members_assignment.phpthird-party-advisory

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