A CWE-79 "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')" was discovered affecting the following devices manufactured by Advantech: EKI-6333AC-2G (<= 1.6.3), EKI-6333AC-2GD (<= v1.6.3) and EKI-6333AC-1GPO (<= v1.2.1). The vulnerability can be exploited remotely leveraging a rogue Wi-Fi access point with a malicious SSID.