Cross-site Scripting (XSS) - Stored in livehelperchat/livehelperchat

Valid

Reported on

Jan 25th 2022


Description

Stored XSS is found in Settings>Live help configuration>Personal Theme>static content. Under the NAME field put a payload {{constructor.constructor('alert(1)')()}} while creating content, and you will see that the input gets stored, and every time the user visits, the payload gets executed.

Proof of Concept

alt text

Impact

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

We are processing your report and will contact the livehelperchat team within 24 hours. 4 months ago
We have contacted a member of the livehelperchat team and are waiting to hear back 4 months ago
Remigijus Kiminas validated this vulnerability 4 months ago
shubh123-tri has been awarded the disclosure bounty
The fix bounty is now up for grabs
Remigijus Kiminas confirmed that a fix has been merged on 9f5bc3 4 months ago
The fix bounty has been dropped
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