CVE-2025-7219 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Payroll Management System. The vulnerability exists in the /ajax.php endpoint, specifically in the 'delete_allowances' action, where the 'ID' parameter is improperly sanitized. This allows an unauthenticated remote attacker to inject malicious SQL code directly into the backend database queries. Exploiting this flaw can lead to unauthorized access to sensitive payroll data, modification or deletion of records, and potentially full compromise of the underlying database. The vulnerability requires no authentication or user interaction, making it highly accessible for attackers. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low attack complexity, no privileges or user interaction required, but limited impact on confidentiality, integrity, and availability. However, given the nature of payroll systems holding sensitive employee and financial data, the real-world impact could be more severe if exploited. No official patches have been released yet, and while no exploits are currently known in the wild, public disclosure increases the risk of exploitation attempts. Organizations using Campcodes Payroll Management System 1.0 should consider this vulnerability critical due to the potential for data breaches and operational disruption.

For European organizations, this vulnerability poses significant risks due to the sensitive nature of payroll data, which includes personal employee information, salary details, and tax-related data. Exploitation could lead to data breaches violating GDPR regulations, resulting in heavy fines and reputational damage. Unauthorized modification or deletion of payroll records could disrupt payroll processing, causing financial and operational issues. Additionally, attackers gaining database access might pivot to other internal systems, escalating the impact. Given the remote and unauthenticated nature of the exploit, attackers can easily target exposed Campcodes Payroll Management System instances. European companies relying on this software, especially SMEs that may lack robust security controls, are particularly vulnerable. The incident could also attract regulatory scrutiny and legal consequences under European data protection laws.

1. Immediate mitigation should include restricting external access to the /ajax.php endpoint, ideally limiting it to trusted internal networks or VPNs. 2. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the 'ID' parameter. 3. Conduct thorough input validation and parameterized queries in the application code to prevent injection attacks; if source code access is available, prioritize patching this vulnerability internally. 4. Monitor logs for suspicious activity related to the 'delete_allowances' action and unusual database queries. 5. If possible, upgrade to a patched version once released by Campcodes or apply vendor-provided fixes. 6. Perform regular security assessments and penetration testing focused on web application vulnerabilities. 7. Educate IT and security teams about this specific vulnerability and ensure incident response plans include scenarios involving payroll system compromise. 8. Backup payroll data regularly and verify backup integrity to enable recovery in case of data tampering.