CVE-2025-4264 is a SQL Injection vulnerability identified in version 1.0 of the PHPGurukul Emergency Ambulance Hiring Portal, specifically within an unknown function in the /admin/edit-ambulance.php file. The vulnerability arises due to improper sanitization or validation of the 'dconnum' parameter, which is susceptible to malicious SQL payloads. An attacker can remotely exploit this flaw without requiring authentication or user interaction, allowing them to manipulate backend SQL queries. This can lead to unauthorized data access, modification, or deletion, potentially compromising the confidentiality, integrity, and availability of the underlying database. The CVSS 4.0 base score is 6.9, indicating a medium severity level, primarily due to the lack of authentication and user interaction requirements but limited impact on confidentiality, integrity, and availability (each rated low). No known exploits are currently reported in the wild, but public disclosure increases the risk of exploitation. The vulnerability affects only version 1.0 of the product, and no official patches or mitigations have been published yet.

For European organizations using the PHPGurukul Emergency Ambulance Hiring Portal version 1.0, this vulnerability poses a significant risk. Given the portal's role in emergency ambulance hiring, exploitation could disrupt critical healthcare logistics, delay emergency response times, and expose sensitive patient or operational data. Unauthorized database access could lead to leakage of personal health information (PHI), violating GDPR and other data protection regulations, resulting in legal and financial penalties. The ability to remotely exploit the vulnerability without authentication increases the attack surface, potentially allowing attackers to compromise multiple installations across healthcare providers or emergency services. Even though the CVSS score is medium, the critical nature of emergency services amplifies the real-world impact. Additionally, compromised systems could be leveraged to launch further attacks within healthcare networks, affecting broader organizational security and patient safety.

1. Immediate mitigation should include implementing input validation and parameterized queries or prepared statements for the 'dconnum' parameter to prevent SQL injection. 2. Conduct a thorough code review of /admin/edit-ambulance.php and related modules to identify and remediate similar injection points. 3. Restrict access to the /admin directory using network-level controls such as VPNs or IP whitelisting to limit exposure. 4. Monitor database logs and web application logs for suspicious queries or anomalous activities related to the 'dconnum' parameter. 5. If possible, deploy a Web Application Firewall (WAF) with rules targeting SQL injection patterns to provide an additional layer of defense. 6. Coordinate with PHPGurukul or responsible vendors for official patches or updates and prioritize their deployment once available. 7. Educate administrators and developers on secure coding practices and the importance of sanitizing all user inputs, especially in administrative interfaces.