Incorrect Authorization Affecting umbraco.cms.web.backoffice package, versions [,10.8.9)[11.0.0-rc1,13.7.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.03% (8th 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 Incorrect Authorization vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DOTNET-UMBRACOCMSWEBBACKOFFICE-9399124
  • published12 Mar 2025
  • disclosed11 Mar 2025
  • creditahmed hazem

Introduced: 11 Mar 2025

CVE-2025-27602  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Umbraco.Cms.Web.BackOffice to version 10.8.9, 13.7.1 or higher.

Overview

Affected versions of this package are vulnerable to Incorrect Authorization in the IsAuthorized() function in ContentPermissionsQueryStringHandler.cs and MediaPermissionsQueryStringHandler.cs. A user with Editor permissions can retrieve or delete content and media of other users by passing in multiple id parameters in a single request.

CVSS Base Scores

version 4.0
version 3.1