Missing Authorization Affecting contao/core-bundle package, versions >=5.7.1, <5.7.12


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.19% (9th 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 Learn

Learn about Missing Authorization vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PHP-CONTAOCOREBUNDLE-21709024
  • published25 Oct 2026
  • disclosed9 Oct 2026
  • creditUnknown

Introduced: 9 Oct 2026

NewCVE-2026-107850  (opens in a new tab)
CWE-639  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade contao/core-bundle to version 5.7.12 or higher.

Overview

contao/core-bundle is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain.

Affected versions of this package are vulnerable to Missing Authorization in the tl_preview_link process. An attacker can gain unauthorized access to preview links, including those created by administrators, by leveraging insufficient access controls. This allows viewing of unpublished or embargoed content by users without appropriate permissions, and by anyone to whom the preview URL is forwarded.

CVSS Base Scores

version 4.0
version 3.1