CVE-2025-6415 is a SQL Injection vulnerability identified in version 1.1 of the PHPGurukul Art Gallery Management System, specifically within the /admin/changeimage3.php file. The vulnerability arises from improper sanitization or validation of the 'editid' parameter, which is susceptible to malicious input manipulation. An attacker can exploit this flaw remotely without requiring user interaction or authentication, allowing them to inject arbitrary SQL commands into the backend database queries. This can lead to unauthorized data access, modification, or deletion, potentially compromising the confidentiality, integrity, and availability of the system's data. The vulnerability has been publicly disclosed, increasing the risk of exploitation, although no known active exploits have been reported in the wild to date. The CVSS 4.0 base score is 5.3, indicating a medium severity level, reflecting the ease of remote exploitation but limited scope and impact due to required privileges (PR:L) and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). The vulnerability does not require user interaction (UI:N) and does not affect system components beyond the application layer (SC:N). Given the nature of the application—a management system for art galleries—successful exploitation could expose sensitive business data, including artwork inventories, client information, and transaction records, potentially leading to financial loss or reputational damage.

For European organizations operating art galleries or cultural institutions using the PHPGurukul Art Gallery Management System version 1.1, this vulnerability poses a tangible risk of data breaches and operational disruption. Exploitation could lead to unauthorized disclosure of sensitive information such as client details, artwork provenance, pricing, and transaction histories. This may result in financial losses, legal liabilities under GDPR due to data exposure, and damage to institutional reputation. Furthermore, manipulation or deletion of database records could disrupt gallery operations, affecting inventory management and sales processes. Although the vulnerability requires some level of privileges (PR:L), the fact that it can be exploited remotely without user interaction increases the attack surface, especially if administrative interfaces are exposed or accessible internally. Given the cultural and economic importance of art galleries in Europe, such an incident could have broader implications for cultural heritage management and trust in digital systems within the sector.

1. Immediate application of patches or updates from PHPGurukul once available is critical; since no patch links are currently provided, organizations should monitor vendor communications closely. 2. Implement Web Application Firewall (WAF) rules specifically targeting SQL injection patterns on the 'editid' parameter to block malicious payloads proactively. 3. Restrict access to the /admin directory and sensitive endpoints via network segmentation and IP whitelisting to limit exposure to trusted personnel only. 4. Conduct a thorough code review and refactor the affected PHP scripts to use parameterized queries or prepared statements, eliminating direct concatenation of user inputs into SQL commands. 5. Employ database user accounts with the least privileges necessary for the application to operate, minimizing the potential damage from SQL injection. 6. Monitor logs for unusual database query patterns or failed injection attempts to detect early exploitation attempts. 7. Educate administrative users on secure credential management and the risks of exposing administrative interfaces externally. 8. Consider deploying runtime application self-protection (RASP) tools that can detect and block injection attempts in real-time within the application environment.