CVE-2025-4030 is a SQL Injection vulnerability identified in version 1.0 of the PHPGurukul COVID19 Testing Management System. The vulnerability resides in the /search-report-result.php file, specifically in the handling of the 'serachdata' parameter. Due to insufficient input validation or sanitization, an attacker can manipulate this parameter to inject malicious SQL queries. This 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 active exploits have been reported in the wild to date. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the ease of remote exploitation (attack vector: network), no privileges or user interaction required, but with limited impact on confidentiality, integrity, and availability. The vulnerability could lead to unauthorized data access, modification, or deletion within the COVID19 testing management system's database, potentially exposing sensitive health data or disrupting system operations. The lack of a vendor patch at the time of disclosure increases the urgency for mitigation.

For European organizations, especially healthcare providers and public health authorities using the PHPGurukul COVID19 Testing Management System, this vulnerability poses a significant risk. Exploitation could lead to unauthorized disclosure of sensitive personal health information related to COVID19 testing, violating GDPR and other data protection regulations. Data integrity could be compromised, resulting in inaccurate test results or reports, which could undermine public health responses. Availability impacts, while rated low, could still disrupt testing workflows, delaying diagnosis and treatment. The public disclosure of the vulnerability increases the likelihood of opportunistic attacks, particularly targeting healthcare infrastructure which remains a high-value target in Europe. Organizations relying on this system must consider the reputational damage and regulatory penalties associated with data breaches. The medium CVSS score suggests a moderate but non-negligible risk, especially given the critical nature of healthcare data.

1. Immediate mitigation should include implementing input validation and parameterized queries or prepared statements in the /search-report-result.php script to prevent SQL injection. 2. If source code modification is not immediately feasible, deploying a Web Application Firewall (WAF) with custom rules to detect and block SQL injection patterns targeting the 'serachdata' parameter can reduce risk. 3. Conduct a thorough audit of all user inputs in the application to identify and remediate similar injection points. 4. Monitor logs for suspicious query patterns or repeated access attempts to the vulnerable endpoint. 5. Segregate and limit database privileges for the application user to minimize potential damage from injection attacks. 6. Engage with PHPGurukul or relevant vendors for patches or updates and apply them promptly once available. 7. Educate staff on incident response procedures specific to data breaches involving health information. 8. Consider temporary alternative solutions or additional verification steps in testing workflows until the vulnerability is fully remediated.