CVE-2026-1545 identifies a SQL injection vulnerability in the itsourcecode School Management System version 1.0, located in the /course/index.php file. The vulnerability arises from improper sanitization of the 'ID' parameter, which can be manipulated by remote attackers without authentication to inject malicious SQL queries. This flaw allows attackers to access, modify, or delete database records, potentially exposing sensitive student and staff information or disrupting system operations. The vulnerability has a CVSS 4.0 base score of 6.9, reflecting medium severity, with attack vector being network-based, no privileges or user interaction required, and partial impact on confidentiality, integrity, and availability. Although no active exploitation has been reported, the public availability of exploit code increases the risk of attacks. The affected software is used primarily in educational environments, where data confidentiality and system availability are critical. The vulnerability's exploitation could lead to unauthorized data disclosure, data tampering, or denial of service, impacting the trustworthiness and functionality of school management systems. The lack of official patches necessitates immediate mitigation efforts by organizations using this software. Overall, this vulnerability represents a significant risk to educational institutions relying on this system, especially given the sensitive nature of the data involved.

For European organizations, particularly educational institutions using the itsourcecode School Management System 1.0, this vulnerability poses a risk of unauthorized access to sensitive student and staff data, including personal identification and academic records. Exploitation could lead to data breaches, violating GDPR and other data protection regulations, resulting in legal and financial consequences. Integrity of data could be compromised, affecting the accuracy of academic records and administrative operations. Availability may also be impacted if attackers execute destructive SQL commands or cause database corruption, disrupting school operations. The public availability of exploit code increases the likelihood of opportunistic attacks, especially targeting less-secured or unpatched systems. Given the critical role of school management systems in daily educational activities, any disruption could have cascading effects on educational delivery and institutional reputation. Furthermore, attackers could leverage this access to pivot into broader network environments if proper network segmentation is not enforced. The impact is amplified in countries with widespread adoption of this software or where educational institutions have limited cybersecurity resources.

Organizations should immediately conduct a thorough code audit of the /course/index.php file to identify and remediate the vulnerable ID parameter. Implement parameterized queries or prepared statements to prevent SQL injection attacks. Apply strict input validation and sanitization on all user-supplied data, especially URL parameters. If possible, restrict access to the vulnerable endpoint using network-level controls such as firewalls or VPNs to limit exposure. Monitor web server and database logs for unusual query patterns indicative of SQL injection attempts. Since no official patches are currently available, consider isolating the affected system or migrating to alternative, secure school management solutions. Educate IT staff and administrators about the vulnerability and the importance of timely updates. Regularly back up databases and verify backup integrity to enable recovery in case of data corruption or loss. Engage with the vendor or community to obtain or develop patches and share threat intelligence. Finally, implement web application firewalls (WAFs) with rules designed to detect and block SQL injection payloads targeting this specific vulnerability.