The product uses a WebSocket, but it does not properly verify that the source of data or communication is valid.
Enable CORS-like access restrictions by verifying the 'Origin' header during the WebSocket handshake.
Use a randomized CSRF token to verify requests.
Use TLS to securely communicate using 'wss' (WebSocket Secure) instead of 'ws'.
Require user authentication prior to the WebSocket connection being established. For example, the WS library in Node has a 'verifyClient' function.
Leverage rate limiting to prevent against DoS. Use of the leaky bucket algorithm can help with this.
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