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High

TYPO3 CMS has Privilege Escalation & SQL Injection in its Form Framework

  • Disclosed: 12.06.2026
  • Updated: 11.10.2026 10:22

Problem

Backend users with write access to the form_definition database table were able to directly create, update, or delete form definition records via DataHandler, bypassing the Form Framework's persistence validation and permission checks. This allowed injecting arbitrary form configurations, re-enabling attack vectors originally addressed in TYPO3-CORE-SA-2018-003, including SQL injection and privilege escalation.

Solution

Update to TYPO3 version 14.3.3 LTS that fixes the problem described.

Credits

TYPO3 CMS thanks Selçuk Güney for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.

Resources

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-core >= 14.0.0, < 14.3.3 14.3.3
Composer package typo3/cms-form >= 14.0.0, < 14.3.3 14.3.3

References

CVSS score -
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-862, CWE-89
Platform
Composer
Package
typo3/cms-core, typo3/cms-form
Disclosed
12.06.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-jh32-v29g-68pq - CC BY 4.0

Vulnerability history: typo3/cms-form

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
03.2021 08.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 5
  • Medium 3

Disclosures per year

  1. TYPO3 CMS - Unrestricted File Upload in Form Framework
    Medium CVE-2026-15305 >= 14.2.0, < 14.3.5 14.3.5
  2. TYPO3 CMS has Broken Access Control in its Form Framework
    High CVE-2026-11607 < 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
  3. TYPO3 CMS has Privilege Escalation & SQL Injection in its Form Framework this entry
    High CVE-2026-49741 >= 14.0.0, < 14.3.3 14.3.3
  4. TYPO3 CMS has Broken Access Control in its Form Framework
    High CVE-2026-47346 < 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
  5. TYPO3 Form Framework Module vulnerable to Cross-Site Request Forgery
    Medium · 5.4 CVE-2024-55922 >= 10.0.0, < 10.4.48, >= 11.0.0, < 11.5.42, >= 12.0.0, < 12.4.25, >= 13.0.0, < 13.4.3 10.4.48, 11.5.42, 12.4.25, 13.4.3
  6. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form
    Medium · 5.4 CVE-2021-21358 >= 10.2.0, < 10.4.14, >= 11.0.0, < 11.1.1 10.4.14, 11.1.1
  7. Broken Access Control in Form Framework
    High · 8.3 CVE-2021-21357 >= 8.0.0, < 8.7.40, >= 9.0.0, < 9.5.25, >= 10.0.0, < 10.4.14, >= 11.0.0, < 11.1.1 8.7.40, 9.5.25, 10.4.14, 11.1.1
  8. Unrestricted File Upload in Form Framework
    High · 8.6 CVE-2021-21355 >= 8.0.0, < 8.7.40, >= 9.0.0, < 9.5.25, >= 10.0.0, < 10.4.14, >= 11.0.0, < 11.1.1 8.7.40, 9.5.25, 10.4.14, 11.1.1

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