Admidio: Inverted 2FA Reset Authorization Check Lets Group Leaders Strip Admin TOTP
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Admidio is an open-source user management solution. Prior to version 5.0.9, a logic error in Admidio's two-factor authentication reset inverts the authorization check. Non-admin users cannot remove their own TOTP configuration, but they can remove other users' TOTP, including administrators. A group leader with profile edit rights on an admin account can strip that admin's 2FA. This issue has been patched in version 5.0.9.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 | before 5.0.9 | 5.0.9 | Patch available | CNA |
| — | admidio/admidio (Packagist) | before 5.0.9 | 5.0.9 | Patch available | GHSA-rh3w-4ccx-prf9 |
- admidio VendorAdmidio Affected before 5.0.9 Fixed in 5.0.9 Patch available CNA
- admidio/admidio (Packagist) Vendor— Affected before 5.0.9 Fixed in 5.0.9 Patch available GHSA-rh3w-4ccx-prf9
Remediation
- Fix · CNA admidio (Admidio) Fixed in 5.0.9
- Fix · GHSA-rh3w-4ccx-prf9 admidio/admidio (Packagist) Fixed in 5.0.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41660
- 2026-10-03 Alias added: GHSA-rh3w-4ccx-prf9
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-2026-41660 · CVE Program
- CVE-2026-41660 · NVD
- FIRST EPSS
- GHSA-rh3w-4ccx-prf9 · 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