CVE-2025-51403

MEDIUM

Live Helper Chat < 4.61 - Stored Cross-Site Scripting via Department Alias Nick Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2025-51403. PoCs published by Manojkumar J, Thewhiteevil.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in LiveHelperChat <=4.61 via the Department Assignment 'Alias Nick' field. A low-privileged user can inject malicious JavaScript, which executes when a higher-privileged user edits the field.

Description

A stored cross-site scripting (XSS) vulnerability in the department assignment editing module of of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Alias Nick parameter.

Exploits (2)

exploitdb WORKING POC
by Manojkumar J · textwebappsphp
https://www.exploit-db.com/exploits/52381

This exploit demonstrates a stored XSS vulnerability in LiveHelperChat <=4.61 via the Department Assignment 'Alias Nick' field. A low-privileged user can inject malicious JavaScript, which executes when a higher-privileged user edits the field.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: LiveHelperChat <=4.61
Auth required
Prerequisites: Low-privileged user access to Department Assignment settings
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP
by Thewhiteevil · poc
https://github.com/Thewhiteevil/CVE-2025-51403

This repository provides a detailed technical writeup for CVE-2025-51403, a stored XSS vulnerability in LiveHelperChat <=4.61. It includes reproduction steps, a payload example, and references to the patch and vendor advisory.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: LiveHelperChat <=4.61
Auth required
Prerequisites: Low-privileged user/operator access to the Department Assignment settings page
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0063
EPSS Percentile 71.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
livehelperchat/live_helper_chat < 4.61
Published Jul 21, 2025
Tracked Since Feb 18, 2026