CVE-2026-11607
TYPO3 CMS - Broken Access Control in Form Framework
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
TYPO3 CMS - Broken Access Control in Form Framework
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.
- Record
CVE-2026-11607- CVSS 4.0
- 7.6 High
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 - Weakness
- CWE-862
- Updated
- 2026-11-02
EUVDEUVD-2026-35391
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.
- Record
EUVD-2026-35391- CVSS 4.0
- 7.6 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pjpj-v387-x4vq
TYPO3 CMS has Broken Access Control in its Form Framework
Problem
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts.
Solution
Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
Credits
TYPO3 CMS thanks “Ethan” for reporting this issue, and TYPO3 core & security team member Oliver Hader for fixing it.
Resources
- Record
GHSA-pjpj-v387-x4vq- CVSS 4.0
- 7.6 High
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 - Weakness
- CWE-862
- Updated
- 2026-11-02
NVD
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.
- Record
CVE-2026-11607- CVSS 4.0
- 7.6 High
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 - Weakness
- CWE-862
- Updated
- 2026-11-02
OSV
TYPO3 CMS - Broken Access Control in Form Framework
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.
- Record
CVE-2026-11607- CVSS 4.0
- 7.6 High
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 - Weakness
- CWE-862
- Updated
- 2026-11-11
OSVGHSA-pjpj-v387-x4vq
TYPO3 CMS has Broken Access Control in its Form Framework
Problem
Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts.
Solution
Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
Credits
TYPO3 CMS thanks “Ethan” for reporting this issue, and TYPO3 core & security team member Oliver Hader for fixing it.
Resources
- Record
GHSA-pjpj-v387-x4vq- CVSS 4.0
- 7.6 High
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 - Weakness
- CWE-862
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cms-corePackagist |
before 10.4.57 | 10.4.57 |
typo3/cms-corePackagist |
11.0.0 up to 11.5.51 | 11.5.51 |
typo3/cms-corePackagist |
12.0.0 up to 12.4.46 | 12.4.46 |
typo3/cms-corePackagist |
13.0.0 up to 13.4.31 | 13.4.31 |
typo3/cms-corePackagist |
14.0.0 up to 14.3.3 | 14.3.3 |
typo3/cms-formPackagist |
before 10.4.57 | 10.4.57 |
typo3/cms-formPackagist |
11.0.0 up to 11.5.51 | 11.5.51 |
typo3/cms-formPackagist |
12.0.0 up to 12.4.46 | 12.4.46 |
typo3/cms-formPackagist |
13.0.0 up to 13.4.31 | 13.4.31 |
typo3/cms-formPackagist |
14.0.0 up to 14.3.3 | 14.3.3 |
Show 10 moreShow less
| Package | Affected | Fixed |
|---|---|---|
typo3/cms-corePackagist |
before 10.4.57, plus listed versions v10.0.0v10.1.0v10.2.0v10.2.1v10.2.2 Show 45 moreShow lessv10.3.0v10.4.0v10.4.1v10.4.10v10.4.11v10.4.12v10.4.13v10.4.14v10.4.15v10.4.16v10.4.17v10.4.18v10.4.19v10.4.2v10.4.20v10.4.21v10.4.22v10.4.23v10.4.24v10.4.25v10.4.26v10.4.27v10.4.28v10.4.29v10.4.3v10.4.30v10.4.31v10.4.32v10.4.33v10.4.34v10.4.36v10.4.37v10.4.4v10.4.5v10.4.6v10.4.7v10.4.8v10.4.9v8.7.10v8.7.11v8.7.12v8.7.13v8.7.14v8.7.15v8.7.16 |
10.4.57 |
typo3/cms-corePackagist |
11.0.0 up to 11.5.51, plus listed versions v11.0.0v11.1.0v11.1.1v11.2.0v11.3.0 Show 45 moreShow lessv11.3.1v11.3.2v11.3.3v11.4.0v11.5.0v11.5.1v11.5.10v11.5.11v11.5.12v11.5.13v11.5.14v11.5.15v11.5.16v11.5.17v11.5.18v11.5.19v11.5.2v11.5.20v11.5.21v11.5.22v11.5.23v11.5.24v11.5.25v11.5.26v11.5.27v11.5.28v11.5.29v11.5.3v11.5.30v11.5.31v11.5.32v11.5.33v11.5.34v11.5.35v11.5.36v11.5.37v11.5.38v11.5.39v11.5.4v11.5.40v11.5.41v11.5.5v11.5.6v11.5.7v11.5.8 |
11.5.51 |
typo3/cms-corePackagist |
12.0.0 up to 12.4.46, plus listed versions v12.0.0v12.1.0v12.1.1v12.1.2v12.1.3 Show 45 moreShow lessv12.2.0v12.3.0v12.4.0v12.4.1v12.4.10v12.4.11v12.4.12v12.4.13v12.4.14v12.4.15v12.4.16v12.4.17v12.4.18v12.4.19v12.4.2v12.4.20v12.4.21v12.4.22v12.4.23v12.4.24v12.4.25v12.4.26v12.4.27v12.4.28v12.4.29v12.4.3v12.4.30v12.4.31v12.4.32v12.4.33v12.4.34v12.4.35v12.4.36v12.4.37v12.4.38v12.4.39v12.4.4v12.4.40v12.4.41v12.4.42v12.4.43v12.4.44v12.4.45v12.4.5v12.4.6 |
12.4.46 |
typo3/cms-corePackagist |
13.0.0 up to 13.4.31, plus listed versions v13.0.0v13.0.1v13.1.0v13.1.1v13.2.0 Show 34 moreShow lessv13.2.1v13.3.0v13.3.1v13.4.0v13.4.1v13.4.10v13.4.11v13.4.12v13.4.13v13.4.14v13.4.15v13.4.16v13.4.17v13.4.18v13.4.19v13.4.2v13.4.20v13.4.21v13.4.22v13.4.23v13.4.24v13.4.25v13.4.26v13.4.27v13.4.28v13.4.29v13.4.3v13.4.30v13.4.4v13.4.5v13.4.6v13.4.7v13.4.8v13.4.9 |
13.4.31 |
typo3/cms-corePackagist |
14.0.0 up to 14.3.3, plus listed versions v14.0.0v14.0.1v14.0.2v14.1.0v14.1.1 Show 4 moreShow lessv14.2.0v14.3.0v14.3.1v14.3.2 |
14.3.3 |
typo3/cms-formPackagist |
before 10.4.57, plus listed versions v10.0.0v10.1.0v10.2.0v10.2.1v10.2.2 Show 45 moreShow lessv10.3.0v10.4.0v10.4.1v10.4.10v10.4.11v10.4.12v10.4.13v10.4.14v10.4.15v10.4.16v10.4.17v10.4.18v10.4.19v10.4.2v10.4.20v10.4.21v10.4.22v10.4.23v10.4.24v10.4.25v10.4.26v10.4.27v10.4.28v10.4.29v10.4.3v10.4.30v10.4.31v10.4.32v10.4.33v10.4.34v10.4.36v10.4.37v10.4.4v10.4.5v10.4.6v10.4.7v10.4.8v10.4.9v8.7.10v8.7.11v8.7.12v8.7.13v8.7.14v8.7.15v8.7.16 |
10.4.57 |
typo3/cms-formPackagist |
11.0.0 up to 11.5.51, plus listed versions v11.0.0v11.1.0v11.1.1v11.2.0v11.3.0 Show 45 moreShow lessv11.3.1v11.3.2v11.3.3v11.4.0v11.5.0v11.5.1v11.5.10v11.5.11v11.5.12v11.5.13v11.5.14v11.5.15v11.5.16v11.5.17v11.5.18v11.5.19v11.5.2v11.5.20v11.5.21v11.5.22v11.5.23v11.5.24v11.5.25v11.5.26v11.5.27v11.5.28v11.5.29v11.5.3v11.5.30v11.5.31v11.5.32v11.5.33v11.5.34v11.5.35v11.5.36v11.5.37v11.5.38v11.5.39v11.5.4v11.5.40v11.5.41v11.5.5v11.5.6v11.5.7v11.5.8 |
11.5.51 |
typo3/cms-formPackagist |
12.0.0 up to 12.4.46, plus listed versions v12.0.0v12.1.0v12.1.1v12.1.2v12.1.3 Show 45 moreShow lessv12.2.0v12.3.0v12.4.0v12.4.1v12.4.10v12.4.11v12.4.12v12.4.13v12.4.14v12.4.15v12.4.16v12.4.17v12.4.18v12.4.19v12.4.2v12.4.20v12.4.21v12.4.22v12.4.23v12.4.24v12.4.25v12.4.26v12.4.27v12.4.28v12.4.29v12.4.3v12.4.30v12.4.31v12.4.32v12.4.33v12.4.34v12.4.35v12.4.36v12.4.37v12.4.38v12.4.39v12.4.4v12.4.40v12.4.41v12.4.42v12.4.43v12.4.44v12.4.45v12.4.5v12.4.6 |
12.4.46 |
typo3/cms-formPackagist |
13.0.0 up to 13.4.31, plus listed versions v13.0.0v13.0.1v13.1.0v13.1.1v13.2.1 Show 33 moreShow lessv13.3.0v13.3.1v13.4.0v13.4.1v13.4.10v13.4.11v13.4.12v13.4.13v13.4.14v13.4.15v13.4.16v13.4.17v13.4.18v13.4.19v13.4.2v13.4.20v13.4.21v13.4.22v13.4.23v13.4.24v13.4.25v13.4.26v13.4.27v13.4.28v13.4.29v13.4.3v13.4.30v13.4.4v13.4.5v13.4.6v13.4.7v13.4.8v13.4.9 |
13.4.31 |
typo3/cms-formPackagist |
14.0.0 up to 14.3.3, plus listed versions v14.0.0v14.0.1v14.0.2v14.1.0v14.1.1 Show 4 moreShow lessv14.2.0v14.3.0v14.3.1v14.3.2 |
14.3.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-11607 is a high vulnerability (CVSS 7.6) in Typo3 Cms, published June 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. Fixed in typo3/cms-core 10.4.57.
References
typo3.org/security/advisory/typo3-core-sa-2026-019
github.com/TYPO3/typo3/commit/50974c658f647f1aece347b5d6d5acc3c87f2dca
nvd.nist.gov/vuln/detail/CVE-2026-11607
Left out here: 128 versions. The JSON record has them.