CVE-2026-1551 identifies a SQL injection vulnerability in itsourcecode School Management System version 1.0, located in the /ramonsys/course/controller.php file. The vulnerability stems from insufficient input validation of the 'ID' parameter, which is used directly in SQL queries without proper sanitization or parameterization. This flaw enables remote attackers to inject malicious SQL code by manipulating the 'ID' argument, potentially allowing unauthorized access to the database, data exfiltration, data modification, or even complete compromise of the backend database. The attack vector is network-based (AV:N), requires low attack complexity (AC:L), no privileges (PR:L) beyond limited user access, and no user interaction (UI:N). The vulnerability affects confidentiality, integrity, and availability to a limited extent (VC:L, VI:L, VA:L). The CVSS 4.0 base score is 5.3, indicating medium severity. Although no known exploits are currently active in the wild, the availability of exploit code increases the risk of future attacks. The vulnerability is critical for environments where sensitive student or staff data is stored, as unauthorized access could lead to privacy violations or data tampering. The lack of official patches necessitates immediate mitigation through code review and secure coding practices.

For European organizations, particularly educational institutions using the itsourcecode School Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of sensitive student and staff data. Successful exploitation could lead to unauthorized disclosure of personal information, alteration of academic records, or disruption of school management operations. This could result in reputational damage, legal liabilities under GDPR, and operational downtime. The medium severity score reflects moderate ease of exploitation combined with potential data impact. Given the critical nature of educational data and increasing cyber threats targeting educational infrastructure in Europe, the vulnerability could be leveraged for espionage, data theft, or ransomware deployment. The absence of patches increases the urgency for organizations to implement compensating controls. Furthermore, the remote exploitability without user interaction makes it a viable target for automated scanning and exploitation campaigns.

1. Immediately conduct a thorough code audit focusing on the /ramonsys/course/controller.php file to identify and remediate unsafe SQL query constructions involving the 'ID' parameter. 2. Implement parameterized queries or prepared statements to prevent SQL injection. 3. Apply strict input validation and sanitization on all user-supplied inputs, especially the 'ID' parameter, enforcing type and format constraints. 4. If official patches become available, prioritize their deployment in all affected environments. 5. Employ Web Application Firewalls (WAFs) with SQL injection detection rules to provide an additional layer of defense. 6. Monitor logs for unusual database query patterns or repeated access attempts targeting the vulnerable endpoint. 7. Restrict database user permissions to the minimum necessary to limit the impact of potential exploitation. 8. Educate development and IT teams on secure coding practices to prevent similar vulnerabilities. 9. Consider isolating the affected system from external networks until mitigations are in place. 10. Regularly back up critical data and verify restoration procedures to minimize operational impact in case of compromise.