
LiveHelperChat <=4.61 - Stored Cross Site Scripting (XSS) via Personal Canned Messages # Date: 09/06/2025
https://github.com/LiveHelperChat/livehelperchat/
A stored cross-site scripting (XSS) vulnerability in Live Helper Chat version ≤ 4.61 allows attackers to execute arbitrary JavaScript by injecting a crafted payload into the Personal Canned Messages. When an admin or operator user views the message, and tries to send canned messages the stored javascript executes in their browser context.
Log in as an operator.
Navigate to your Personal Canned Messages.
Create new personal canned message, enter the following payload:
"><img src="https://raw.githubusercontent.com/thewhiteevil/cve-2025-51400/HEAD/x" onerror="prompt(1);">
Save the changes.
Try to use the personal canned message, the cross site scripting (xss) will execute.