CVE-2025-63535 identifies a critical SQL injection vulnerability in the Blood Bank Management System 1.0, specifically in the abs.php component. This vulnerability arises because the application does not properly sanitize user-supplied input before incorporating it into SQL queries. The flaw allows an attacker to inject arbitrary SQL commands via the search field, which can be exploited to bypass authentication mechanisms and gain unauthorized access to the system. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). The CVSS v3.1 score of 9.6 reflects a critical severity, with low attack complexity, network attack vector, no required privileges, and no user interaction needed. The scope is changed, indicating that exploitation affects resources beyond the vulnerable component, potentially compromising the entire system. Although no public exploits are currently known, the vulnerability poses a significant risk to confidentiality, integrity, and availability of sensitive blood bank data and system operations. The Blood Bank Management System is a critical healthcare application managing sensitive donor and recipient information, making this vulnerability particularly impactful. The vulnerability was reserved in late October 2025 and published in December 2025, indicating recent discovery and disclosure.

For European organizations, especially healthcare providers and blood banks, this vulnerability could lead to unauthorized access to sensitive personal and medical data, including donor and recipient information. The ability to bypass authentication means attackers could manipulate or exfiltrate data, disrupt blood bank operations, or alter records, potentially endangering patient safety. The breach of confidentiality could violate GDPR regulations, leading to legal and financial penalties. Integrity loss could result in incorrect blood matching or inventory errors, impacting healthcare delivery. Availability impacts could arise if attackers disrupt system functionality or cause denial of service. Given the critical nature of blood bank systems in healthcare infrastructure, exploitation could have severe operational and reputational consequences across European healthcare networks.

To mitigate this vulnerability, organizations should immediately implement strict input validation and sanitization on all user-supplied data, especially in the abs.php component's search functionality. Employ parameterized queries or prepared statements to prevent SQL injection attacks. Conduct a comprehensive code review of the Blood Bank Management System to identify and remediate similar vulnerabilities. Restrict database user permissions to the minimum necessary to limit the impact of potential exploits. Implement multi-factor authentication and monitor access logs for suspicious activity to detect unauthorized access attempts. Regularly update and patch the system once vendor fixes become available. Additionally, conduct penetration testing and vulnerability scanning focused on SQL injection vectors. Educate developers and administrators about secure coding practices and the importance of input validation. Finally, ensure incident response plans are in place to quickly address any exploitation attempts.