TYPO3 CMS - Information Disclosure via Backend Localization Wizard
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure, Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-862.
Summary
It has been discovered that several AJAX routes used for the backend localization wizard failed to perform authorization checks. This allowed authenticated, low-privileged backend users to access information about records and content elements that fall outside of their permitted range. Exploiting this vulnerability requires a low-privileged backend user account. This issue affects TYPO3 CMS versions 10.0.0-10.4.59, 11.0.0-11.5.53, 12.0.0-12.4.48, 13.0.0-13.4.34 and 14.0.0-14.3.6.
Why it matters now
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 |
|---|---|---|---|---|---|
| TYPO3 | TYPO3 CMS | 10.0.0 to before 10.4.60; 11.0.0 to before 11.5.54; 12.0.0 to before 12.4.49; 13.0.0 to before 13.4.35; 14.0.0 to before 14.3.7 | 10.4.60, 11.5.54, 12.4.49, 13.4.35, 14.3.7 | Patch available | CNA |
- TYPO3 CMS VendorTYPO3 Affected 10.0.0 to before 10.4.60; 11.0.0 to before 11.5.54; 12.0.0 to before 12.4.49; 13.0.0 to before 13.4.35; 14.0.0 to before 14.3.7 Fixed in 10.4.60, 11.5.54, 12.4.49, 13.4.35, 14.3.7 Patch available CNA
Remediation
- Fix · CNA TYPO3 CMS (TYPO3) Fixed in 10.4.60, 11.5.54, 12.4.49, 13.4.35, 14.3.7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77132
References
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-2025-30547 The sr_feuser_register extension through 12.4.8 for TYPO3 allows Remote Code Execution. CVSS 3.1CRITICAL 10.0
- TI-2019-08867 The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before… CVSS 3.1CRITICAL 9.8
- TI-2008-04019 Unspecified vulnerability in the TYPO3 Secure Directory (kw_secdir) extension before… CVSS 2.0HIGH 10.0
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences