TI-2026-71145 Aliases CVE-2026-109329 GHSA-h6qv-2m44-96j9

Cross-organization access control bypass in Admidio

LOW 37CWE-639Published 2026-10-12 · Updated 2026-10-13

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 contains an authorization bypass through a user-controlled key (CWE-639). A role administrator can assign users to roles in other organizations, which lets a remote attacker with high privileges gain privileged membership, log into that organization and edit its user profiles.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00285 21st percentileScored 2026-11-07

Fix Fixed admidio (Admidio): 5.0.15

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Admidio	admidio	4.3.2 – 4.3.17; 5.0.0 to before 5.0.15	5.0.15	Patch available	CNA

admidio VendorAdmidio Affected 4.3.2 – 4.3.17; 5.0.0 to before 5.0.15 Fixed in 5.0.15 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:admidio:admidio::::::::	—	—	Admidio

cpe:2.3:a:admidio:admidio:*:*:*:*:*:*:*:* Versions — — ·Admidio

Remediation

Upgrade Admidio to version 5.0.15, which is the listed fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA admidio (Admidio) Fixed in 5.0.15

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-12
admidio 5.0.15
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-71144 Stored cross-site scripting in Admidio registration namePriority MEDIUM 57
- TI-2026-71143 Reflected cross-site scripting in Admidio redirect pagePriority MEDIUM 56
Show all 3 records →

Timeline

2026-10-12 Threatist record created from CVE-2026-109329
2026-10-12 Alias added: GHSA-h6qv-2m44-96j9
2026-10-13 Priority changed: MEDIUM → LOW
2026-10-13 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-ggch-5cpv-rvqx)

TI-2026-25286 Admidio is Missing Authorization and CSRF Protection on Document and Folder Deletion CVSS 3.1CRITICAL 9.1
TI-2026-56995 Admidio before 5.0.12 Authentication Bypass via RSS feeds CVSS 4.0HIGH 8.7
TI-2026-56993 Admidio before 5.0.12 SQL Injection via relation_type_list CVSS 4.0HIGH 8.7
TI-2024-25222 Admidio has Blind SQL Injection in ecard_send.php CVSS 3.1CRITICAL 10.0
TI-2026-30186 Admidio: SAML Signature Validation Result Ignored — Forged AuthnRequests and LogoutRequests Processed CVSS 3.1HIGH 8.2
TI-2024-25764 Admidio Vulnerable to RCE via Arbitrary File Upload in Message Attachment CVSS 3.1CRITICAL 9.1

See all 72 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences