CVE-2025-5603 is a SQL Injection vulnerability identified in version 1.0 of the Campcodes Hospital Management System, specifically within the /registration.php file. The vulnerability arises from improper sanitization or validation of user-supplied input in the full_name or username parameters, allowing an attacker to inject malicious SQL code. This injection can be exploited remotely without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/PR:N/UI:N). Successful exploitation could lead to unauthorized access to the underlying database, enabling attackers to read, modify, or delete sensitive patient and hospital data. Although the CVSS score is 6.9 (medium severity), the potential impact on confidentiality, integrity, and availability of critical healthcare information systems is significant. The vulnerability does not require privileges or user interaction, increasing its risk profile. No patches or mitigations have been officially released yet, and while no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the likelihood of exploitation attempts. Given the critical nature of hospital management systems in handling sensitive patient records and operational data, this vulnerability poses a substantial risk to healthcare providers using this software.

For European organizations, particularly healthcare providers, this vulnerability could result in severe consequences. Exploitation may lead to unauthorized disclosure of personal health information (PHI), violating GDPR regulations and exposing organizations to legal and financial penalties. Data integrity could be compromised, affecting patient care quality and hospital operations. Additionally, attackers could disrupt system availability, potentially impacting critical healthcare services. The breach of sensitive data could also damage organizational reputation and erode patient trust. Given the interconnected nature of healthcare IT systems, a successful attack could propagate risks to other integrated systems. European hospitals using Campcodes Hospital Management System 1.0 are at risk of targeted attacks, especially as healthcare remains a high-value target for cybercriminals and nation-state actors in Europe.

Immediate mitigation steps include implementing strict input validation and parameterized queries or prepared statements to prevent SQL injection. Organizations should conduct a thorough code review of the /registration.php functionality to identify and remediate unsafe input handling. Network-level protections such as Web Application Firewalls (WAFs) can be configured to detect and block SQL injection attempts targeting the vulnerable parameters. Monitoring and logging of database queries and application logs should be enhanced to detect suspicious activities. Since no official patch is currently available, organizations should consider isolating or restricting access to the affected system until a vendor patch or update is released. Additionally, conducting penetration testing and vulnerability scanning focused on SQL injection vectors can help identify other potential weaknesses. Training developers and IT staff on secure coding practices and incident response preparedness is also recommended to reduce future risks.