Cross-site Request Forgery (CSRF) Affecting winter/wn-backend-module package, versions >=1.0.319, <1.2.14


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-PHP-WINTERWNBACKENDMODULE-19428280
  • published29 Aug 2026
  • disclosed20 Aug 2026
  • creditUnknown

Introduced: 20 Aug 2026

New CVE NOT AVAILABLE CWE-352  (opens in a new tab)

How to fix?

Upgrade winter/wn-backend-module to version 1.2.14 or higher.

Overview

Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF) via the actionExists process. An attacker can cause destructive changes to system state, such as truncating logs, resetting settings, altering user states, or deleting templates, by tricking an authenticated backend user with the necessary permissions into following a crafted link. This is only exploitable if an authenticated backend user with the relevant permissions follows an attacker-supplied link.

Workaround

This vulnerability can be mitigated by manually applying the referenced patch or by setting 'same_site' => 'strict' in the session configuration to prevent session cookies from being sent on cross-site navigation.

CVSS Base Scores

version 4.0
version 3.1