CVE-2025-13057 identifies a SQL injection vulnerability in Campcodes School Fees Payment Management System version 1.0, specifically in the /ajax.php?action=save_student endpoint. The vulnerability arises from improper sanitization of the 'ID' parameter, which is directly used in SQL queries without adequate validation or parameterization. This allows an attacker to craft malicious input that alters the intended SQL command, potentially enabling unauthorized access to or manipulation of the backend database. The attack vector is remote network access without requiring user interaction or elevated privileges, increasing the ease of exploitation. The vulnerability affects confidentiality by potentially exposing sensitive student and payment data, integrity by allowing unauthorized modification or deletion of records, and availability if destructive queries are executed. Although no exploits are currently observed in the wild, a public exploit exists, which could facilitate rapid weaponization. The vulnerability is rated medium severity with a CVSS 4.0 score of 5.3, reflecting the moderate impact and ease of exploitation. The lack of patches currently necessitates immediate mitigation through secure coding practices, input validation, and monitoring. Given the critical nature of financial data in educational environments, this vulnerability poses a significant risk to institutions relying on this system.

For European organizations, particularly educational institutions using the Campcodes School Fees Payment Management System, this vulnerability could lead to unauthorized disclosure of sensitive student financial data, undermining privacy and regulatory compliance such as GDPR. Data integrity could be compromised, resulting in inaccurate billing or payment records, which could disrupt financial operations and trust. Availability impacts could arise if attackers execute destructive SQL commands, potentially causing service outages or data loss. The remote and unauthenticated nature of the exploit increases the risk of widespread attacks, especially if the system is exposed to the internet without adequate network protections. The reputational damage and potential legal consequences from data breaches could be significant. Additionally, the public availability of an exploit increases the likelihood of opportunistic attacks targeting vulnerable installations across Europe.

European organizations should immediately implement strict input validation and sanitization for all parameters, especially the 'ID' parameter in the /ajax.php?action=save_student endpoint. Employ parameterized queries or prepared statements to prevent SQL injection. Restrict access to the vulnerable endpoint via network segmentation, firewalls, or VPNs to limit exposure. Monitor database logs and application behavior for anomalous queries or access patterns indicative of exploitation attempts. Conduct a thorough audit of all Campcodes School Fees Payment Management System installations to identify vulnerable versions and isolate them. Engage with the vendor for patches or updates and apply them promptly once available. Implement web application firewalls (WAFs) with rules targeting SQL injection attempts as an additional protective layer. Educate IT staff and administrators on the risks and signs of SQL injection attacks to enhance detection and response capabilities.