CVE-2025-5363 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Online Hospital Management System, specifically within an unknown functionality of the /doctor/index.php file. The vulnerability arises from improper sanitization or validation of the 'Username' parameter, which can be manipulated by an attacker to inject malicious SQL code. This injection flaw allows remote attackers to execute arbitrary SQL commands on the backend database without requiring authentication or user interaction. The vulnerability has been publicly disclosed, increasing the risk of exploitation, although no known exploits have been observed in the wild yet. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low attack complexity, and no privileges or user interaction required. The impact on confidentiality, integrity, and availability is rated low individually, but combined they could lead to significant data leakage, unauthorized data modification, or disruption of hospital management operations. Given the critical nature of healthcare data and the role of hospital management systems in patient care, exploitation could have serious consequences including exposure of sensitive patient information and operational disruptions.

For European organizations, particularly healthcare providers using the Campcodes Online Hospital Management System, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive patient data, violating GDPR and other data protection regulations, potentially resulting in heavy fines and reputational damage. The integrity of medical records could be compromised, affecting patient care quality and safety. Availability impacts could disrupt hospital workflows, delaying treatments and diagnostics. Given the critical nature of healthcare infrastructure, such disruptions could have life-threatening consequences. Furthermore, the public disclosure of the vulnerability increases the urgency for European hospitals to assess and remediate the risk promptly to prevent targeted attacks or ransomware campaigns leveraging this flaw.

1. Immediate application of vendor patches or updates once available is essential. Since no patch links are currently provided, organizations should contact Campcodes for official remediation. 2. Implement Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the 'Username' parameter in /doctor/index.php. 3. Conduct thorough input validation and sanitization on all user-supplied data, especially parameters used in SQL queries. 4. Employ parameterized queries or prepared statements in the application code to prevent SQL injection. 5. Monitor logs for unusual database query patterns or repeated failed login attempts that may indicate exploitation attempts. 6. Restrict database user permissions to the minimum necessary to limit potential damage from injection attacks. 7. Perform regular security assessments and penetration testing focused on injection vulnerabilities. 8. Educate IT and security staff about this vulnerability and the importance of rapid response to public disclosures.