Missing input validation in the ORing IAP-420 web-interface allows stored Cross-Site Scripting (XSS).This issue affects IAP-420 version 2.01e and below.
On ORing net IAP-420(+) with FW version 2.0m a telnet server is enabled by default and cannot permanently be disabled. You can connect to the device via LAN or WiFi with hardcoded credentials and get an administrative shell. These credentials are reset to defaults with every reboot.