Arbitrary Content Injection Vulnerability in TwinCAT 3 HMI Server by Beckhoff

CVE-2025-41768

What is CVE-2025-41768?

An authenticated administrator on TwinCAT 3 HMI Server can exploit a flaw allowing them to inject arbitrary content into the custom CSS field. This injected content is saved and can later appear on the login and error pages, posing a potential security risk by deceiving users or exposing sensitive information.

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References