CVE-2025-4304 is a SQL Injection vulnerability identified in version 1.0 of the PHPGurukul Cyber Cafe Management System, specifically within the /adminprofile.php file. The vulnerability arises from improper sanitization or validation of the 'mobilenumber' parameter, which can be manipulated by an unauthenticated remote attacker to inject malicious SQL code. This injection flaw allows the attacker to interfere with the backend database queries, potentially leading to unauthorized data access, data modification, or even complete compromise of the database. The vulnerability does not require any authentication or user interaction, making it remotely exploitable over the network. Although the CVSS 4.0 base score is 6.9, categorized as medium severity, the impact on confidentiality, integrity, and availability is low to limited, as indicated by the CVSS vector (VC:L/VI:L/VA:L). No known exploits are currently reported in the wild, but public disclosure of the exploit code increases the risk of exploitation. The vulnerability may also affect other parameters, suggesting a broader input validation issue within the application. The lack of available patches or updates from the vendor increases the urgency for organizations to implement compensating controls.

For European organizations using PHPGurukul Cyber Cafe Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of their customer and operational data. Cyber cafes often handle sensitive user information, including personal identification and usage logs, which could be exposed or altered by attackers exploiting this flaw. The ability to remotely execute SQL injection without authentication means attackers can potentially extract sensitive data, manipulate records, or disrupt service availability. This could lead to reputational damage, regulatory non-compliance (e.g., GDPR violations due to data breaches), and operational disruptions. Given the niche nature of the product, the impact is more pronounced for smaller businesses or public access points relying on this system. However, any interconnected systems or networks could also be at risk if attackers leverage this vulnerability as a foothold for lateral movement.

Since no official patches are currently available, European organizations should immediately implement the following mitigations: 1) Employ Web Application Firewalls (WAFs) with rules specifically designed to detect and block SQL injection attempts targeting the 'mobilenumber' parameter and other input fields in /adminprofile.php. 2) Conduct thorough input validation and sanitization on all user-supplied data, especially parameters related to administrative functions. 3) Restrict network access to the administration interface by IP whitelisting or VPN access to limit exposure. 4) Monitor database logs and application logs for unusual queries or access patterns indicative of injection attempts. 5) If feasible, isolate the Cyber Cafe Management System from critical internal networks to contain potential breaches. 6) Plan for an upgrade or migration to a more secure management system or await vendor patches while maintaining heightened monitoring. 7) Educate staff on the risks and signs of exploitation to enable rapid incident response.