LiveHelperChat 4.61 – Stored Cross Site Scripting (XSS) via Facebook Integration Page Name Field

• CVE-2025-51398

Exploit Title: LiveHelperChat 4.61…

# Exploit Title: LiveHelperChat 4.61 – Stored Cross Site Scripting (XSS)

via Facebook Integration Page Name Field

# 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-2025-51398

# Exploit link: https://github.com/Thewhiteevil/CVE-2025-51398

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 Facebook page integration Name Field.

The payload is stored and executed when higher-privileged users (e.g.,

administrators) access or edit the integration settings, resulting in

stored Cross Site Scripting (XSS).

## Reproduction Steps:

1. Log in as an operator.

2. Navigate to your Facebook page integration.

3. Create new Facebook page integration, enter the following payload in the

Facebook page integration Name Field:

“`

“>

“`

4. Save the changes.

5. The payload is stored and executed when higher-privileged users (e.g.,

operator or administrators) access or edit the Facebook page integration,

resulting in stored Cross Site Scripting (XSS).