CVE-2025-13057 identifies a SQL injection vulnerability in Campcodes School Fees Payment Management System version 1.0, specifically within the /ajax.php?action=save_student endpoint. The vulnerability arises from insufficient sanitization of the 'ID' parameter, which is directly used in SQL queries without proper validation or parameterization. This flaw allows remote attackers to inject malicious SQL code, potentially enabling unauthorized data retrieval, modification, or deletion within the underlying database. The attack vector is network accessible (AV:N), requires low attack complexity (AC:L), and does not require authentication (AT:N) or user interaction (UI:N). The vulnerability impacts confidentiality, integrity, and availability to a limited extent (VC:L, VI:L, VA:L), with no scope change (S:N). Although no known exploits are currently active in the wild, a public exploit exists, increasing the risk of exploitation. The vulnerability affects only version 1.0 of the product, which is used primarily in educational institutions for managing school fee payments. The lack of patches or vendor advisories at this time necessitates immediate defensive actions by users. The vulnerability's CVSS 4.0 base score is 5.3, reflecting a medium severity level.

For European organizations, particularly educational institutions using Campcodes School Fees Payment Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of sensitive student and financial data. Exploitation could lead to unauthorized access to payment records, student information, and potentially allow attackers to manipulate fee payment data, resulting in financial fraud or disruption of school operations. The availability impact is limited but could manifest if attackers execute destructive SQL commands. Given the remote exploitability without authentication, attackers could target these systems en masse, potentially leading to data breaches or compliance violations under GDPR. The reputational damage and regulatory penalties for compromised personal data could be substantial. Additionally, disruption in fee payment processing could affect school revenue and operational continuity.

Organizations should immediately implement input validation and sanitization on the 'ID' parameter in the /ajax.php?action=save_student endpoint, preferably by adopting parameterized queries or prepared statements to prevent SQL injection. If source code modification is not feasible, deploying a Web Application Firewall (WAF) with rules to detect and block SQL injection attempts targeting this endpoint is recommended. Network segmentation and restricting access to the payment management system to trusted IP ranges can reduce exposure. Continuous monitoring of logs for suspicious SQL errors or unusual database queries should be established. Organizations should also engage with Campcodes for official patches or updates and plan for timely application once available. Conducting security audits and penetration testing focused on injection flaws in the system is advised. Finally, ensure regular backups of the database to enable recovery in case of data tampering or loss.