CVE-2026-47346 json
TYPO3 CMS - Broken Access Control in Form Framework
published 2026-06-09 5 mo ago modified 2026-09-10 1 mo ago also GHSA-hwvq-2w67-rvxp , EUVD-2026-35393
- cvss
- 7.6
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework's upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 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.
Patch / fix
- packagist typo3/cms-core 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
- packagist typo3/cms-form 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
- TYPO3 TYPO3 CMS 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
- github.com/TYPO3/typo3@2030617 commit
- github.com/TYPO3/typo3@eb2b225 commit
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | typo3/cms-core | <10.4.57 >=11.0.0, <11.5.51 >=12.0.0, <12.4.46 >=13.0.0, <13.4.31 >=14.0.0, <14.3.3 |
10.4.57 11.5.51 12.4.46 13.4.31 14.3.3 |
| packagist | typo3/cms-form | <10.4.57 >=11.0.0, <11.5.51 >=12.0.0, <12.4.46 >=13.0.0, <13.4.31 >=14.0.0, <14.3.3 |
10.4.57 11.5.51 12.4.46 13.4.31 14.3.3 |
Affected products
- TYPO3 TYPO3 CMS
Classification
References
-
github.com
/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47
patch, web
-
github.com
/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45
patch, web
-
typo3.org
/security/advisory/typo3-core-sa-2026-008
vendor-advisory, web
-
github.com
/TYPO3/typo3/security/advisories/GHSA-hwvq-2w67-rvxp
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-47346
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47346.yaml
web
-
github.com
/TYPO3/typo3
package
Sources
- CVE List CVE-2026-47346
- GitHub Advisory GHSA-hwvq-2w67-rvxp
- NVD CVE-2026-47346
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