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


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-PHP-TYPO3CMSBACKEND-17339196
  • published15 Jun 2026
  • disclosed12 Jun 2026
  • creditPhong Lan

Introduced: 12 Jun 2026

NewCVE-2026-47352  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

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

Overview

Affected versions of this package are vulnerable to Missing Authorization via the Backend API routes. An attacker can access unauthorized file metadata by sending crafted requests to endpoints without proper permission checks, potentially retrieving information about files outside their permitted file mounts or storages.

CVSS Base Scores

version 4.0
version 3.1