Cross Site Scripting Vulnerability in Simple ChatBox by Code-Projects
CVE-2026-6159

5.3MEDIUM

Key Information:

Vendor

Code-projects

Status
Simple Chatbox
Vendor
CVE Published:
13 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6159?

A vulnerability exists in the Simple ChatBox application by Code-Projects, specifically in the insert.php file of its Endpoint component. This issue allows an attacker to manipulate the 'msg' argument, leading to potential cross-site scripting attacks. The exploit can be executed remotely, posing risks to users who engage with the chat interface. With the vulnerability publicly disclosed, it is crucial for users to take immediate action to safeguard their systems.

Affected Version(s)

Simple ChatBox 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6159 - Proof of Concept

References

https://vuldb.com/vuln/357039
vdb-entrytechnical-description
https://vuldb.com/vuln/357039/cti
signaturepermissions-required
https://vuldb.com/submit/796666
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

AhmadMarzook (VulDB User)
.