Admidio before 5.0.11 Authentication Bypass via forum.php
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Admidio before 5.0.11 contains an authentication bypass vulnerability in the forum module when configured in login-only mode. The access control logic in modules/forum.php fails to validate the login-only configuration state, allowing unauthenticated attackers to read forum topics and posts by directly accessing the module with read-only parameters.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA admidio (Admidio) Fixed in 5.0.11
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
admidio 5.0.11
5 records Highest priority Priority HIGH 1 HIGH, 4 MEDIUM
Other records, highest priority first
- TI-2026-48499 Admidio before 5.0.11 Reflected XSS via SSO/SAML EndpointPriority HIGH 70
- TI-2026-48500 Admidio before 5.0.11 CSRF via category-report preferencesPriority MEDIUM 64
- TI-2026-48497 Admidio before 5.0.11 Cross-Organization Role ModificationPriority MEDIUM 64
Timeline
- 2026-10-02 Threatist record created from CVE-2026-69091
- 2026-10-03 Alias added: GHSA-qjhq-374q-29q9
References
More Admidio vulnerabilities
- 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
Sources
- CVE-2026-69091 · CVE Program
- CVE-2026-69091 · NVD
- FIRST EPSS
- GHSA-qjhq-374q-29q9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences