CVE-2025-13273 is a SQL injection vulnerability identified in Campcodes School Fees Payment Management System version 1.0. The vulnerability resides in the /ajax.php endpoint when called with the action parameter set to delete_payment. Specifically, the ID argument is not properly sanitized, allowing an attacker to inject arbitrary SQL queries remotely. The attack vector is network-based (AV:N), requires low attack complexity (AC:L), no privileges (PR:L) beyond low-level user access, and no user interaction (UI:N). The impact on confidentiality, integrity, and availability is low to moderate (VC:L, VI:L, VA:L), indicating potential unauthorized data disclosure or modification but not full system compromise. The vulnerability has been publicly disclosed, and proof-of-concept exploit code is available, although no confirmed active exploitation has been reported. This flaw could allow attackers to manipulate payment records, extract sensitive financial data, or disrupt payment processing workflows. The lack of vendor patches increases the urgency for organizations to implement compensating controls. The vulnerability score of 5.3 (medium severity) reflects the moderate risk posed by this issue, balancing ease of exploitation with limited impact scope. Given the nature of the affected system—handling school fee payments—this vulnerability poses a significant risk to educational institutions relying on Campcodes software for financial transactions.

For European organizations, especially educational institutions using Campcodes School Fees Payment Management System 1.0, this vulnerability could lead to unauthorized access to sensitive financial data, including student payment records. Exploitation could result in data breaches exposing personally identifiable information (PII) and financial details, undermining trust and potentially violating GDPR requirements. Integrity of payment records could be compromised, leading to financial discrepancies and operational disruptions in fee management. Availability impact is likely limited but could occur if attackers manipulate or delete payment data, causing service interruptions. The public availability of exploit code increases the likelihood of attacks, particularly targeting institutions with weak perimeter defenses. Organizations without timely patches or mitigations may face reputational damage and regulatory penalties in Europe. The medium severity score suggests a moderate but actionable risk that requires prompt attention to prevent escalation or chained attacks.

Since no official patches are currently available from Campcodes, European organizations should implement immediate compensating controls. These include deploying web application firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the /ajax.php?action=delete_payment endpoint. Input validation and sanitization should be enforced at the application level to reject malformed or suspicious ID parameters. Network segmentation can limit exposure of the payment management system to trusted internal users only. Monitoring and logging of all requests to the vulnerable endpoint should be enhanced to detect anomalous activity. Organizations should also conduct code reviews and penetration testing to identify and remediate similar injection flaws. Once vendor patches are released, prompt application is critical. Additionally, educating staff about the risks and ensuring least privilege access controls can reduce the attack surface. Backup and recovery plans should be verified to mitigate potential data loss from exploitation.