TYPO3 Has Broken Authentication in Backend MFA
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-288.
Summary
TYPO3 is an open source, PHP based web content management system. In versions on the 12.x branch prior to 12.4.31 LTS and the 13.x branch prior to 13.4.2 LTS, the multifactor authentication (MFA) dialog presented during backend login can be bypassed due to insufficient enforcement of access restrictions on all backend routes. Successful exploitation requires valid backend user credentials, as MFA can only be bypassed after successful authentication. Users should update to TYPO3 version 12.4.31 LTS or 13.4.12 LTS to fix the problem.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| TYPO3 | typo3 | 12.0.0 to before 12.4.31; 13.0.0 to before 13.4.12 | 12.4.31, 13.4.12 | Patch available | CNA |
| — | typo3/cms-backend (Packagist) | 12.0.0 to before 12.4.31 | 12.4.31 | Patch available | GHSA-744g-7qm9-hjh9 |
| — | typo3/cms-backend (Packagist) | 13.0.0 to before 13.4.12 | 13.4.12 | Patch available | GHSA-744g-7qm9-hjh9 |
- typo3 VendorTYPO3 Affected 12.0.0 to before 12.4.31; 13.0.0 to before 13.4.12 Fixed in 12.4.31, 13.4.12 Patch available CNA
- typo3/cms-backend (Packagist) Vendor— Affected 12.0.0 to before 12.4.31 Fixed in 12.4.31 Patch available GHSA-744g-7qm9-hjh9
- typo3/cms-backend (Packagist) Vendor— Affected 13.0.0 to before 13.4.12 Fixed in 13.4.12 Patch available GHSA-744g-7qm9-hjh9
Remediation
- Fix · CNA typo3 (TYPO3) Fixed in 12.4.31, 13.4.12
- Fix · GHSA-744g-7qm9-hjh9 typo3/cms-backend (Packagist) Fixed in 12.4.31 Advisory →
- Fix · GHSA-744g-7qm9-hjh9 typo3/cms-backend (Packagist) Fixed in 13.4.12 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-47941
- 2026-10-03 Alias added: GHSA-744g-7qm9-hjh9
References
Advisory 3
More Typo3 vulnerabilities
- TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
- TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
- TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
- TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
- TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
- TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-47941 · CVE Program
- CVE-2025-47941 · NVD
- FIRST EPSS
- GHSA-744g-7qm9-hjh9 · GitHub Advisory Database · CC BY 4.0
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