AIKIDO-2025-10287
Umbraco.Cms is vulnerable to Information Disclosure
15
Low Risk
This Affects:
Umbraco.CmsTL;DR
Affected versions of this package are vulnerable to information disclosure due to improper access controls that allow back-office users without proper webhook permissions to access webhook logs due to insufficient access controls. Additionally, the application fails to properly validate file system paths, exposing resolved paths and potentially allowing directory traversal attacks. An attacker with back-office access, even without webhook privileges, can read sensitive webhook logs or access arbitrary files on the system. It leads to information disclosure or server compromise.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
Umbraco.Cms is vulnerable to Information Disclosure in versions 9.3.0 - 15.3.1.
How to fix this
Upgrade the Umbraco.Cms library to the patch version.
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