Social Engineering Vulnerability in Signal K Server by Signal K

CVE-2025-69203

What is CVE-2025-69203?

Signal K Server, a central hub server application for boats, has a vulnerability allowing attackers to manipulate access requests and conduct social engineering attacks. Versions before 2.19.0 are affected. The system displays a prominent 'description' field in access requests while the critical 'permissions' field is less visible. This discrepancy enables attackers to request elevated permissions under the guise of a benign intent. Additionally, the application improperly trusts the 'X-Forwarded-For' header, allowing attackers to spoof their IP addresses, making malicious requests appear to originate from internal network addresses. By combining these issues, attackers can impersonate legitimate devices, craft convincing messages, and potentially deceive administrators into granting unauthorized access. To mitigate this risk, users should upgrade to version 2.19.0 or later.

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