LiveHelperChat 4.61 - Stored Cross Site Scripting (XSS) via the Chat Transfer Function

# Exploit Title: LiveHelperChat 4.61 - Stored Cross Site Scripting (XSS) via the Chat Transfer Function
# Date: 09/06/2025
# Exploit Author: Manojkumar J (TheWhiteEvil)
# Linkedin: https://www.linkedin.com/in/manojkumar-j-7ba35b202/
# Vendor Homepage: https://github.com/LiveHelperChat/livehelperchat/
# Software Link:
https://github.com/LiveHelperChat/livehelperchat/
# Version: <=4.61
# Patched Version: 4.61
# Category: Web Application
# Tested on: Mac OS Sequoia 15.5, Firefox
# CVE : CVE-2025-51401
# Exploit link: https://github.com/Thewhiteevil/CVE-2025-51401

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 Operator Chat Name Field Triggers on
Chat Owner Transfer Functionality on Live Helper Chat.

## Reproduction Steps:
1. Log in as an operator.
2. Navigate to your operator settings page.
3. In the **Name** field, enter the following payload:
   ```
  "><img src="x" onerror="prompt(1);">
   ```
4. Save the changes.
5. Initiate a chat with a visitor.
6. Transfer the chat to another operator — the XSS payload executes in the
receiving operator’s chat interface.