CVE-2025-6911 is a SQL Injection vulnerability identified in version 3.2 of the PHPGurukul Student Record System, specifically within the /manage-subjects.php file. The vulnerability arises from improper sanitization or validation of the 'del' parameter, which an attacker can manipulate to inject malicious SQL code. This injection flaw allows an unauthenticated remote attacker to execute arbitrary SQL queries on the backend database. The vulnerability does not require user interaction and can be exploited over the network without prior authentication, increasing its risk profile. The CVSS 4.0 score is 5.3 (medium severity), reflecting the fact that while the attack vector is network-based and requires no user interaction, it does require low privileges (PR:L) and results in limited confidentiality, integrity, and availability impacts. The vulnerability affects an unknown portion of the code in the specified file, and no official patches or fixes have been linked yet. Although no known exploits are reported in the wild, the public disclosure of the exploit code increases the likelihood of exploitation attempts. SQL Injection vulnerabilities can lead to unauthorized data access, data modification, or even full system compromise depending on the database privileges and system architecture. Given that the affected product is a Student Record System, sensitive personal and academic data could be exposed or altered, potentially violating data protection regulations.

For European organizations, this vulnerability poses a significant risk, especially for educational institutions or administrative bodies using the PHPGurukul Student Record System version 3.2. Exploitation could lead to unauthorized disclosure of student records, including personal identifiable information (PII), grades, and other sensitive academic data. This exposure could result in violations of the EU General Data Protection Regulation (GDPR), leading to legal penalties and reputational damage. Additionally, data integrity could be compromised, affecting the accuracy of student records and potentially disrupting academic operations. The availability of the system could also be impacted if attackers execute destructive SQL commands, causing denial of service. The medium CVSS score suggests a moderate risk, but the critical nature of educational data and regulatory environment in Europe elevate the potential impact. Organizations relying on this system must consider the risk of data breaches and operational disruptions, as well as the potential for attackers to leverage this vulnerability as a foothold for further network intrusion.

Given the absence of official patches, immediate mitigation should focus on input validation and filtering. Organizations should implement strict server-side validation and sanitization of the 'del' parameter in /manage-subjects.php to prevent malicious SQL code injection. Employing prepared statements or parameterized queries is strongly recommended to eliminate direct concatenation of user inputs into SQL commands. Additionally, applying Web Application Firewalls (WAFs) with rules targeting SQL Injection patterns can provide a protective layer against exploitation attempts. Access controls should be reviewed to ensure that only authorized personnel have privileges to manage subjects, reducing the risk posed by low-privilege exploitation. Monitoring and logging of database queries and web application activity should be enhanced to detect suspicious behavior promptly. Organizations should also consider isolating the affected system within the network to limit potential lateral movement. Finally, maintain awareness of vendor updates or community patches and plan for timely application once available.