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Incorrect Authorization


Severity Medium
Score 5.4/10


Umbraco is an ASP.NET content management system (CMS). In versions 8.0.0 through 8.18.9, 9.0.0-beta001 through 10.8.0, 11.0.0-rc1 through 12.3.3, and 13.0.0-rc1 through 13.0.0-rc5 users with low privileges (Editor, etc.) can access some unintended endpoints.

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CWE-863 - Incorrect Authorization

Authorization is a security mechanism performed by an application to grant or deny access to the requested resources by verifying the privileges of the user. When an application lacks effective authorization mechanisms, it enables unauthorized users to gain unintended privileges and illegitimate access to resources. Such a vulnerability may result in exposure of sensitive information, denial of service, arbitrary code execution, and complete system takeover.


Advisory Timeline

  • Published