CVE-2025-6956 is a critical SQL Injection vulnerability identified in version 1.0 of the Campcodes Employee Management System, specifically within the /changepassemp.php file. The vulnerability arises from improper sanitization or validation of the 'ID' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands against the backend database without requiring any user interaction or privileges. The exploitation of this vulnerability could lead to unauthorized data access, modification, or deletion, potentially compromising sensitive employee information stored within the system. Although the CVSS 4.0 base score is 6.9 (medium severity), the classification as critical in the description suggests that the impact could be severe depending on the deployment context. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely. No official patches or mitigations have been disclosed yet, and while no known exploits are currently observed in the wild, the public disclosure increases the risk of exploitation by threat actors. Given the nature of employee management systems, the database likely contains personally identifiable information (PII), payroll data, and access credentials, making this vulnerability a significant risk for data breaches and insider threat escalation.

For European organizations using Campcodes Employee Management System 1.0, this vulnerability poses a substantial risk to confidentiality, integrity, and availability of employee data. Successful exploitation could lead to unauthorized disclosure of sensitive personal and financial information, violating GDPR and other data protection regulations, potentially resulting in heavy fines and reputational damage. Integrity of employee records could be compromised, affecting payroll, attendance, and HR processes. Availability might also be impacted if attackers execute destructive SQL commands or cause database corruption. The remote, unauthenticated nature of the exploit increases the likelihood of attacks, especially in organizations with internet-facing deployments of this system. Given the criticality of employee data and regulatory environment in Europe, this vulnerability could have severe operational and compliance consequences.

Immediate mitigation should focus on restricting external access to the /changepassemp.php endpoint through network segmentation and firewall rules, limiting exposure to trusted internal networks only. Organizations should implement Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the 'ID' parameter. Input validation and parameterized queries should be enforced in the application code to prevent injection; however, since no patch is currently available, organizations should engage with the vendor for an official fix or consider upgrading to a patched version once released. Regular database backups and monitoring for unusual query patterns or access attempts are recommended to detect and respond to exploitation attempts promptly. Additionally, organizations should review and tighten database user privileges to minimize the impact of a successful injection attack. Conducting a thorough security assessment of the entire employee management system and related infrastructure is advised to identify and remediate other potential vulnerabilities.