CVE-2025-6915 is a critical SQL Injection vulnerability identified in version 3.2 of the PHPGurukul Student Record System, specifically within the /register.php file. The vulnerability arises from improper sanitization or validation of the 'session' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands on the backend database without requiring user interaction or privileges. The vulnerability is classified with a CVSS 4.0 base score of 5.3 (medium severity), reflecting factors such as network attack vector, low attack complexity, no privileges required, and no user interaction needed. The impact on confidentiality, integrity, and availability is limited but present, as the vulnerability could allow partial data disclosure, modification, or deletion depending on the database permissions and structure. Although no known exploits are currently observed in the wild, the public disclosure of the exploit increases the risk of exploitation. The lack of an official patch or mitigation guidance from the vendor at this time further elevates the threat. The vulnerability's exploitation could compromise sensitive student records, potentially exposing personal data and academic information, and could disrupt the normal operation of the student record system.

For European organizations, particularly educational institutions using PHPGurukul Student Record System 3.2, this vulnerability poses a significant risk to the confidentiality and integrity of student data. Exploitation could lead to unauthorized access to personal and academic records, violating data protection regulations such as GDPR, which mandates strict controls over personal data. The potential data breach could result in legal penalties, reputational damage, and loss of trust among students and stakeholders. Additionally, attackers could manipulate or delete records, impacting academic operations and record accuracy. The remote and unauthenticated nature of the attack vector increases the likelihood of exploitation, especially in institutions with externally accessible registration portals. The medium severity rating suggests a moderate but tangible threat that requires prompt attention to prevent escalation or chaining with other vulnerabilities.

Organizations should immediately audit their use of PHPGurukul Student Record System 3.2 and restrict external access to the /register.php endpoint where feasible. Implementing Web Application Firewalls (WAF) with SQL injection detection and prevention rules can provide a temporary protective layer. Input validation and sanitization should be enforced at the application level, particularly for the 'session' parameter, to neutralize malicious payloads. Since no official patch is currently available, organizations should consider isolating the affected system within the network, applying strict access controls, and monitoring logs for suspicious SQL queries or unusual activity. Regular backups of the database should be maintained to enable recovery in case of data manipulation or loss. Engaging with the vendor for updates and patches is critical, and organizations should plan for an immediate update once a fix is released. Additionally, conducting penetration testing focused on SQL injection vectors can help identify and remediate similar vulnerabilities.