Missing Authorization Affecting typo3/cms-form package, versions <13.4.31>=14.0.0, <14.3.3


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Social Trends
EPSS
0.25% (17th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-PHP-TYPO3CMSFORM-17339205
  • published15 Jun 2026
  • disclosed12 Jun 2026
  • creditAlexander Künzl

Introduced: 12 Jun 2026

NewCVE-2026-47346  (opens in a new tab)
CWE-178  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade typo3/cms-form to version 13.4.31, 14.3.3 or higher.

Overview

typo3/cms-form is a Form Library, Plugin and Editor

Affected versions of this package are vulnerable to Missing Authorization via the upload for form definition files with mixed-case extensions. An attacker can escalate privileges by uploading maliciously crafted files that execute arbitrary SQL statements, potentially creating administrative backend user accounts.

CVSS Base Scores

version 4.0
version 3.1