CVE-2025-7521 is a critical SQL Injection vulnerability identified in version 1.13 of the PHPGurukul Vehicle Parking Management System, specifically within an unspecified function in the /admin/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 flaw allows remote attackers to execute arbitrary SQL commands against the backend database without requiring authentication or user interaction. The CVSS 4.0 base score is 6.9, indicating a medium severity level, with an attack vector of network (remote exploitation), low attack complexity, no privileges required, and no user interaction needed. The vulnerability impacts confidentiality, integrity, and availability to a limited extent, as indicated by the low impact metrics for these security properties. Although no known exploits are currently active in the wild, the public disclosure of the exploit code increases the risk of exploitation. The vulnerability could allow attackers to extract sensitive data, modify or delete records, or disrupt the normal operation of the parking management system, potentially leading to operational disruptions or data breaches.

For European organizations utilizing PHPGurukul Vehicle Parking Management System version 1.13, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to sensitive data such as user credentials, vehicle information, or payment details stored in the system's database. This could result in data breaches violating GDPR and other privacy regulations, leading to legal and financial repercussions. Operationally, attackers could manipulate or delete parking records, causing service disruptions that affect business continuity and customer trust. Given that the vulnerability requires no authentication and can be exploited remotely, attackers can target exposed administrative interfaces over the internet, increasing the attack surface. Organizations managing critical infrastructure or large-scale parking facilities may face amplified risks, including reputational damage and potential cascading effects on related services.

To mitigate this vulnerability effectively, organizations should prioritize upgrading or patching the PHPGurukul Vehicle Parking Management System to a version where this SQL Injection flaw is fixed; if no official patch exists, applying custom input validation and parameterized queries in the affected /admin/index.php file is essential. Implementing Web Application Firewalls (WAFs) with rules specifically designed to detect and block SQL Injection attempts targeting the 'Username' parameter can provide an additional protective layer. Restricting access to the administrative interface via network segmentation, VPNs, or IP whitelisting reduces exposure to remote attackers. Regularly auditing and monitoring database queries and logs for unusual activity can help detect exploitation attempts early. Finally, conducting security awareness training for administrators to recognize suspicious behavior and ensuring timely incident response plans are in place will enhance overall resilience.