Description:

A Stored Cross Site Scripting (XSS) vulnerability exists in Sourcecodester Vehicle Service Management System 1.0 via the User List Section in login panel.

Exploit:

1. Login to the admin panel http://localhost/vehicle_service/admin
2. Navigate to User List section and click on Create New button.
3. Inject the below payload in First Name & Last Name input field.

Payload:

4. Click on Save button.
5. Malicious javascript code triggered.

Impact:

An attacker can able to inject malicious JavaScript code in User List Section.

Mitigation:

It is recommended to sanitize all the input fields throughout the application.