GHSA-jh32-v29g-68pq — TYPO3 CMS has Privilege Escalation & SQL Injection in its Form Framework

The advisory, in context

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

TYPO3-CORE-SA-2026-017

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

typo3/cms-core Packagist

Ecosystem versions

From 14.0.0 before 14.3.3

Fixed in 14.3.3

9 explicitly affected versions

v14.0.0, v14.0.1, v14.0.2, v14.1.0, v14.1.1, v14.2.0, v14.3.0, v14.3.1, v14.3.2

View affected-version evidence

{
  "ranges": [
    {
      "events": [
        {
          "introduced": "14.0.0"
        },
        {
          "fixed": "14.3.3"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v14.0.0",
    "v14.0.1",
    "v14.0.2",
    "v14.1.0",
    "v14.1.1",
    "v14.2.0",
    "v14.3.0",
    "v14.3.1",
    "v14.3.2"
  ]
}

typo3/cms-form Packagist