CVE-2025-7219 is a SQL Injection vulnerability identified in version 1.0 of the Campcodes Payroll Management System. The vulnerability exists in the /ajax.php endpoint, specifically when the 'action' parameter is set to 'delete_allowances' and the 'ID' argument is manipulated. This allows an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. The injection flaw can lead to unauthorized access or modification of the payroll database, potentially exposing sensitive employee and financial data. The vulnerability is classified as medium severity with a CVSS 4.0 base score of 6.9, reflecting its network exploitable nature (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The impact on confidentiality, integrity, and availability is rated as low to medium, indicating partial compromise potential. Although no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of exploitation. The lack of available patches or mitigations from the vendor further elevates the threat to organizations still running this version of the software.

For European organizations using Campcodes Payroll Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of payroll data. Successful exploitation could lead to unauthorized disclosure of employee personal information, salary details, and potentially manipulation of payroll records, resulting in financial fraud or compliance violations under GDPR. The remote and unauthenticated nature of the attack vector means that attackers can exploit this vulnerability from anywhere, increasing the threat surface. Disruption or data corruption could also impact business continuity and trust in payroll operations. Given the critical nature of payroll data and strict European data protection regulations, exploitation could lead to severe legal and reputational consequences for affected organizations.

Organizations should immediately assess their use of Campcodes Payroll Management System version 1.0 and prioritize upgrading to a patched or newer version once available. In the absence of an official patch, implement web application firewall (WAF) rules to detect and block SQL injection patterns targeting the /ajax.php?action=delete_allowances endpoint, specifically filtering and validating the 'ID' parameter to allow only expected numeric values. Employ input validation and parameterized queries if custom code modifications are possible. Conduct thorough logging and monitoring of access to this endpoint to detect suspicious activity. Network segmentation should be used to limit exposure of the payroll system to only trusted internal networks. Additionally, perform regular database integrity checks and backups to enable recovery in case of data tampering. Finally, raise awareness among IT and security teams about this vulnerability and monitor threat intelligence feeds for emerging exploits.