Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Martem TELEM GW6 and GWM devices with firmware 2018.04.18-linux_4-01-601cb47 and prior allow improper sanitization of data over a Websocket which may allow cross-site scripting and client-side code execution with target user privileges.
CWE-79 - Cross Site Scripting
Cross-Site Scripting, commonly referred to as XSS, is the most dominant class of vulnerabilities. It allows an attacker to inject malicious code into a pregnable web application and victimize its users. The exploitation of such a weakness can cause severe issues such as account takeover, and sensitive data exfiltration. Because of the prevalence of XSS vulnerabilities and their high rate of exploitation, it has remained in the OWASP top 10 vulnerabilities for years.