Cross-site Scripting (XSS) - Stored in livehelperchat/livehelperchat
Dec 27th 2021
The Mobile Options settings does not sanitise and escape the
$mb_options['fcm_key'] parameter lead to stored XSS
Proof of Concept
Go to Mobile settings, fill XSS payload into FCM Key field kind of:
XSS can have huge implications for a web application and its users. User accounts can be hijacked, change the html screen and insult the organization. Credentials could be stolen, sensitive data could be exfiltrated, and lastly, access to your client computers can be obtained.