CVE-2025-6416 is a SQL Injection vulnerability identified in version 1.1 of the PHPGurukul Art Gallery Management System, specifically within an unspecified function in the /admin/changeimage4.php file. The vulnerability arises from improper sanitization or validation of the 'editid' parameter, which is susceptible to malicious SQL payloads. An attacker can remotely exploit this flaw without requiring authentication or user interaction, by manipulating the 'editid' argument in HTTP requests to the affected endpoint. This can lead to unauthorized access to the backend database, allowing attackers to read, modify, or delete data, 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 exploits have been reported in the wild as of now. The CVSS 4.0 base score is 5.3 (medium severity), reflecting the network attack vector, low attack complexity, no privileges or user interaction required, but limited impact on confidentiality, integrity, and availability. The vulnerability affects only version 1.1 of the PHPGurukul Art Gallery Management System, a niche product used primarily for managing art gallery operations, including image management and related administrative functions.

For European organizations using the PHPGurukul Art Gallery Management System version 1.1, this vulnerability poses a moderate risk. Exploitation could lead to unauthorized data disclosure or manipulation, which may include sensitive customer information, artwork details, transaction records, or administrative credentials. This could result in reputational damage, regulatory non-compliance (especially under GDPR if personal data is involved), financial losses, and operational disruption. Given the specialized nature of the product, the impact is likely confined to art galleries, museums, or cultural institutions that rely on this system. However, if these institutions are part of larger cultural networks or handle high-value assets, the compromise could have broader implications. The remote exploitability without authentication increases the attack surface, especially if the affected system is exposed to the internet. The medium CVSS score suggests that while the vulnerability is serious, it may not lead to full system compromise or widespread disruption without additional factors.

1. Immediate patching or upgrading to a fixed version of the PHPGurukul Art Gallery Management System is the most effective mitigation; if no official patch is available, consider disabling or restricting access to the /admin/changeimage4.php endpoint. 2. Implement web application firewall (WAF) rules to detect and block SQL injection patterns targeting the 'editid' parameter. 3. Restrict network access to the administrative interface to trusted IP addresses or VPN-only access to reduce exposure. 4. Conduct a thorough audit of database queries related to this parameter and apply parameterized queries or prepared statements to prevent injection. 5. Monitor logs for suspicious activity related to the 'editid' parameter and anomalous database queries. 6. Educate administrators on the risks of exposing administrative endpoints publicly and enforce strong access controls. 7. If feasible, isolate the affected system within a segmented network zone to limit lateral movement in case of compromise.