Cookies of authenticated Advantech ADAM-5630 users remain as active valid cookies when a session is closed. Forging requests with a legitimate cookie, even if the session was terminated, allows an unauthorized attacker to act with the same level of privileges of the legitimate user.

Advantech ADAM-5630 shares user credentials plain text between the device and the user source device during the login process.

Advantech ADAM-5630 contains a cross-site request forgery (CSRF) vulnerability. It allows an attacker to partly circumvent the same origin policy, which is designed to prevent different websites from interfering with each other.