CVE-2025-7534 is a critical SQL Injection vulnerability identified in version 2.0 of the PHPGurukul Student Result Management System, specifically within the /notice-details.php file. The vulnerability arises from improper sanitization and validation of the GET parameter 'nid', which is directly used in SQL queries without adequate escaping or parameterization. This flaw allows an unauthenticated remote attacker to inject arbitrary SQL code by manipulating the 'nid' parameter, potentially leading to unauthorized data access, data modification, or even complete compromise of the underlying database. The vulnerability does not require any user interaction or authentication, making it highly exploitable over the network. Although the CVSS 4.0 score is 6.9 (medium severity), the classification as critical by the vendor suggests that the impact could be significant depending on the deployment context. The vulnerability affects the confidentiality, integrity, and availability of the system's data, especially sensitive student records managed by the application. No official patches have been published yet, and while no known exploits are reported in the wild, the public disclosure of the exploit code increases the risk of exploitation by malicious actors.

For European organizations, particularly educational institutions using the PHPGurukul Student Result Management System version 2.0, this vulnerability poses a serious risk. Exploitation could lead to unauthorized disclosure of sensitive student information, including grades and personal data, violating GDPR and other data protection regulations. Data integrity could be compromised, allowing attackers to alter student results or notices, undermining trust and potentially causing reputational damage. Availability impacts could arise if attackers execute destructive SQL commands, leading to denial of service or data loss. The remote and unauthenticated nature of the attack vector increases the likelihood of exploitation, especially in institutions with internet-facing deployments of this system. Additionally, the lack of patches means organizations must rely on immediate mitigation strategies to protect their systems. The exposure of educational data could also have broader implications, including identity theft or targeted phishing attacks against students and staff.

European organizations should immediately audit their use of the PHPGurukul Student Result Management System to identify any installations of version 2.0. In the absence of an official patch, organizations should implement the following mitigations: 1) Apply Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting the 'nid' parameter, using signature-based and anomaly detection methods. 2) Restrict external access to the /notice-details.php endpoint by network segmentation or IP whitelisting to limit exposure. 3) Employ input validation and sanitization at the application level, if source code access is available, by implementing prepared statements or parameterized queries for all database interactions involving user input. 4) Monitor logs for suspicious activity related to the 'nid' parameter and unusual database errors. 5) Conduct regular backups of the database to enable recovery in case of data tampering or loss. 6) Plan for an urgent upgrade or patch deployment once the vendor releases a fix. 7) Educate IT staff and administrators about the vulnerability and the importance of rapid response to any detected exploitation attempts.