Critical Vulnerability Information Affected Product Product Name: Directory Management System Version: V2.0 Link: https://phpgurukul.com/directory-management-system-using-php-and-mysql/ Vulnerable File File: /admin/add-directory.php Vulnerability Type Type: Cross-Site Scripting (XSS) Root Cause Malicious JavaScript code can be injected via the "fullname" parameter, which is directly rendered in the HTML response without proper output encoding or validation. Impact Attackers can exploit this XSS vulnerability to execute arbitrary scripts, leading to session hijacking, exposure of sensitive user information, website defacement, and unauthorized operations. Poses a serious threat to the confidentiality, integrity, and trustworthiness of the system, potentially compromising user data, damaging system reputation, and disrupting normal business operations. Description During a security assessment of the Directory Management System, a critical cross-site scripting vulnerability was identified. Attackers can inject malicious JavaScript code through the "fullname" parameter. Vulnerability Location Parameter: fullname Vulnerability Request Packet Recommended Remediation Measures 1. Use prepared statements and parameter binding. 2. Implement input validation and filtering. 3. Minimize database user privileges.