Description

Stored XSS is found in Settings>Live help configuration>Departments->Departments groups->edit When a user creates a new webhook under the NAME field and puts a payload {{constructor.constructor('alert(1)')()}}, the input gets stored, at user edit groupname , the payload gets executed.

Proof of Concept

https://drive.google.com/file/d/1V2dbaOS_h5HCab-C0KUaXOmaurZABVeE/view?usp=sharing

Impact

Through this vulnerability, an attacker is capable to execute malicious scripts.