TYPO3 CMS - Broken Access Control in Media Module
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
Backend users with file download permissions were able to download files from the fallback storage of the file abstraction layer (FAL) via the Media Module. Since the fallback storage resolves paths relative to the server's document root, this could expose sensitive files such as log files. This issue affects TYPO3 CMS versions 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.
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 | 11.0.0 to before 11.5.51; 12.0.0 to before 12.4.46; 13.0.0 to before 13.4.31; 14.0.0 to before 14.3.3 | 11.5.51, 12.4.46, 13.4.31, 14.3.3 | Patch available | CNA |
| — | typo3/cms-core (Packagist) | 11.0.0 to before 11.5.51 | 11.5.51 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-core (Packagist) | 12.0.0 to before 12.4.46 | 12.4.46 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-core (Packagist) | 13.0.0 to before 13.4.31 | 13.4.31 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-core (Packagist) | 14.0.0 to before 14.3.3 | 14.3.3 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-filelist (Packagist) | 11.0.0 to before 11.5.51 | 11.5.51 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-filelist (Packagist) | 12.0.0 to before 12.4.46 | 12.4.46 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-filelist (Packagist) | 13.0.0 to before 13.4.31 | 13.4.31 | Patch available | GHSA-chm7-4vch-h8vr |
| — | typo3/cms-filelist (Packagist) | 14.0.0 to before 14.3.3 | 14.3.3 | Patch available | GHSA-chm7-4vch-h8vr |
- TYPO3 CMS VendorTYPO3 Affected 11.0.0 to before 11.5.51; 12.0.0 to before 12.4.46; 13.0.0 to before 13.4.31; 14.0.0 to before 14.3.3 Fixed in 11.5.51, 12.4.46, 13.4.31, 14.3.3 Patch available CNA
- typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.5.51 Fixed in 11.5.51 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-core (Packagist) Vendor— Affected 12.0.0 to before 12.4.46 Fixed in 12.4.46 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-core (Packagist) Vendor— Affected 13.0.0 to before 13.4.31 Fixed in 13.4.31 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-core (Packagist) Vendor— Affected 14.0.0 to before 14.3.3 Fixed in 14.3.3 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-filelist (Packagist) Vendor— Affected 11.0.0 to before 11.5.51 Fixed in 11.5.51 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-filelist (Packagist) Vendor— Affected 12.0.0 to before 12.4.46 Fixed in 12.4.46 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-filelist (Packagist) Vendor— Affected 13.0.0 to before 13.4.31 Fixed in 13.4.31 Patch available GHSA-chm7-4vch-h8vr
- typo3/cms-filelist (Packagist) Vendor— Affected 14.0.0 to before 14.3.3 Fixed in 14.3.3 Patch available GHSA-chm7-4vch-h8vr
Remediation
- Fix · CNA TYPO3 CMS (TYPO3) Fixed in 11.5.51, 12.4.46, 13.4.31, 14.3.3
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-core (Packagist) Fixed in 11.5.51 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-core (Packagist) Fixed in 12.4.46 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-core (Packagist) Fixed in 13.4.31 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-core (Packagist) Fixed in 14.3.3 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-filelist (Packagist) Fixed in 11.5.51 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-filelist (Packagist) Fixed in 12.4.46 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-filelist (Packagist) Fixed in 13.4.31 Advisory →
- Fix · GHSA-chm7-4vch-h8vr typo3/cms-filelist (Packagist) Fixed in 14.3.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-49742
- 2026-10-03 Alias added: GHSA-chm7-4vch-h8vr
References
Advisory 2
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
- CVE-2026-49742 · CVE Program
- CVE-2026-49742 · NVD
- FIRST EPSS
- GHSA-chm7-4vch-h8vr · GitHub Advisory Database · CC BY 4.0
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