CVE-2025-4307 is a SQL Injection vulnerability identified in version 1.1 of the PHPGurukul Art Gallery Management System, specifically within the /admin/add-art-medium.php file. The vulnerability arises from improper sanitization or validation of the 'artmed' parameter, which is used in SQL queries. An attacker can remotely manipulate this parameter to inject malicious SQL code, potentially allowing unauthorized access to or modification of the underlying database. The vulnerability does not require authentication, user interaction, or privileges, and can be exploited over the network, making it accessible to remote attackers without any prior access. The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting the potential for partial impact on confidentiality, integrity, and availability of the system. Although no public exploits are currently known to be actively used in the wild, the vulnerability has been publicly disclosed, increasing the risk of exploitation. The lack of available patches or mitigations from the vendor at this time further elevates the risk for users of this software version.

For European organizations using PHPGurukul Art Gallery Management System 1.1, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized data disclosure, data manipulation, or deletion within the art gallery management database. This could compromise sensitive information such as artwork details, artist information, transaction records, or user credentials if stored. The integrity of the system could be undermined, leading to operational disruptions or reputational damage. Given the remote and unauthenticated nature of the exploit, attackers could leverage this vulnerability to gain a foothold within the network or pivot to other systems. Organizations in the cultural, educational, or commercial sectors that rely on this software for managing art collections or sales could face data breaches or service interruptions, impacting business continuity and compliance with data protection regulations such as GDPR.

Immediate mitigation steps include implementing strict input validation and parameterized queries or prepared statements within the affected PHP script to prevent SQL injection. Organizations should audit their current installations of PHPGurukul Art Gallery Management System to identify if version 1.1 is in use. If so, they should consider isolating the affected system from public networks or restricting access to trusted IP addresses until a vendor patch is released. Web application firewalls (WAFs) can be configured to detect and block suspicious SQL injection patterns targeting the 'artmed' parameter. Regular database backups should be maintained to enable recovery in case of data compromise. Monitoring logs for unusual database queries or access patterns can provide early detection of exploitation attempts. Engaging with the vendor or community to obtain or develop patches is critical. Additionally, organizations should review their overall application security posture to prevent similar injection flaws in other components.