Water Management System Cross-Site Scripting Vulnerability

A cross-site scripting (XSS) vulnerability has been identified in Water Management System version 1.0. The issue resides in the 'add_customer.php' file, where user input is not properly sanitized, allowing for the injection of malicious scripts.

Impact

Exploitation of this vulnerability allows for cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser. This could lead to session hijacking, theft of authentication cookies, phishing attacks, data theft, and manipulation of displayed content.

Reproduction

To reproduce this vulnerability, log into the application and navigate to the 'Customer' section. From there, access the 'Add Vendor Details' page. In the 'Customer Name' field, enter a script payload designed to execute JavaScript, such as an alert script, while filling out the other required fields. After submitting the form, the injected script will execute, demonstrating the XSS vulnerability.

Remediation

To address this vulnerability, implement input validation to sanitize user inputs, escape special characters, and encode user input before displaying it in the browser. Additionally, consider applying a Content Security Policy (CSP) to restrict the execution of inline scripts.