CVE-2026-11607: CWE-862 Missing Authorization in TYPO3 TYPO3 CMS
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, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.
AI Analysis
Technical Summary
CVE-2026-11607 is a missing authorization vulnerability (CWE-862) in TYPO3 CMS's Form Framework. Backend users with access can exploit the system by using improperly validated form definition files with incorrect extensions, which are processed without restriction. This leads to arbitrary SQL execution, allowing attackers to escalate privileges by creating administrative backend user accounts. The vulnerability affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31, and 14.0.0-14.3.3.
Potential Impact
Successful exploitation allows attackers with backend user access to execute arbitrary SQL statements, resulting in privilege escalation by creating administrative backend user accounts. This compromises the integrity and security of the TYPO3 CMS installation, potentially allowing full administrative control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict backend user access to the Form Framework to trusted users only and monitor for suspicious activity related to form definition files.
CVE-2026-11607: CWE-862 Missing Authorization in TYPO3 TYPO3 CMS
Description
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, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.
CVSS v4.0
Score 7.6high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11607 is a missing authorization vulnerability (CWE-862) in TYPO3 CMS's Form Framework. Backend users with access can exploit the system by using improperly validated form definition files with incorrect extensions, which are processed without restriction. This leads to arbitrary SQL execution, allowing attackers to escalate privileges by creating administrative backend user accounts. The vulnerability affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31, and 14.0.0-14.3.3.
Potential Impact
Successful exploitation allows attackers with backend user access to execute arbitrary SQL statements, resulting in privilege escalation by creating administrative backend user accounts. This compromises the integrity and security of the TYPO3 CMS installation, potentially allowing full administrative control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict backend user access to the Form Framework to trusted users only and monitor for suspicious activity related to form definition files.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TYPO3
- Date Reserved
- 2026-06-08T15:41:55.470Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a27f83d8dd33fbd8526d7dd
Added to database: 6/9/2026, 11:25:49 AM
Last enriched: 6/9/2026, 11:41:06 AM
Last updated: 6/10/2026, 7:09:26 AM
Views: 10
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