CVE-2025-56214 identifies a critical SQL Injection vulnerability (CWE-89) in phpgurukul Hospital Management System version 4.0. The flaw exists in the index.php script where the username parameter is not properly sanitized, allowing remote attackers to inject malicious SQL queries without authentication. This can result in unauthorized data access, modification, or deletion, severely impacting system security.

Successful exploitation of this vulnerability can lead to complete compromise of the affected system's database, including unauthorized disclosure, modification, or deletion of sensitive data. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, and full impact on confidentiality, integrity, and availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider implementing web application firewall (WAF) rules to detect and block SQL injection attempts targeting the username parameter. Additionally, review and harden input validation and parameterized query usage in the application code if possible.