Information Disclosure in Install Tool in typo3/cms-install
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions the login screen of the standalone install tool discloses the full path of the transient data directory (e.g. /var/www/html/var/transient/). This applies to composer-based scenarios only - “classic” non-composer installations are not affected. This issue has been addressed in version 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.
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 | 12.2.0 to before 12.4.8 | 12.4.8 | Patch available | CNA |
| — | typo3/cms-install (Packagist) | 12.2.0 to before 12.4.8 | 12.4.8 | Patch available | GHSA-p2jh-95jg-2w55 |
- typo3 VendorTYPO3 Affected 12.2.0 to before 12.4.8 Fixed in 12.4.8 Patch available CNA
- typo3/cms-install (Packagist) Vendor— Affected 12.2.0 to before 12.4.8 Fixed in 12.4.8 Patch available GHSA-p2jh-95jg-2w55
Remediation
- Fix · CNA typo3 (TYPO3) Fixed in 12.4.8
- Fix · GHSA-p2jh-95jg-2w55 typo3/cms-install (Packagist) Fixed in 12.4.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-47126
- 2026-10-03 Alias added: GHSA-p2jh-95jg-2w55
- 2026-10-07 EPSS moved to the 50th–90th percentile
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-2023-47126 · CVE Program
- CVE-2023-47126 · NVD
- FIRST EPSS
- GHSA-p2jh-95jg-2w55 · 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