Cross-Site Scripting Vulnerability in SourceCodester Inventory Management System by SourceCodester
CVE-2026-90694

5.1MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Inventory Management System
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90694?

A vulnerability exists in the SourceCodester Inventory Management System version 1.0 that affects its Customer Management Module. Specifically, the issue arises from an insufficiently sanitized input in the /api/customers_handler.php file, where manipulation of the 'Customer_Name' argument could allow for cross-site scripting (XSS) attacks. These XSS vulnerabilities may enable adversaries to execute malicious scripts on end-user browsers, potentially leading to unauthorized access to sensitive data or session hijacking. This vulnerability can be exploited remotely, and public disclosures have raised awareness of its implications.

Affected Version(s)

Inventory Management System 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-2026-90694 - Proof of Concept

References

https://vuldb.com/vuln/403227
vdb-entrytechnical-description
https://vuldb.com/vuln/403227/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90694
third-party-advisory

CVSS V4

Score:
5.1
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

Mohammed Faheem (VulDB User)
.