Cross-Site Scripting (XSS)

Cross-site scripting (XSS) is a type of security vulnerability typically found in web applications. XSS attacks enable attackers to inject client-side scripts into web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin policy.

Source : Wikipedia

XSS in JSON Response

Under certain conditions, XSS can be triggered in JSON response.