CVE-2025-7121 is a SQL Injection vulnerability identified in version 1.0 of the Campcodes Complaint Management System, specifically within the /users/complaint-details.php file. The vulnerability arises from improper sanitization or validation of the 'cid' parameter, which is used to query the database. An attacker can manipulate this parameter to inject malicious SQL code, potentially allowing unauthorized access to or manipulation of the underlying database. The vulnerability is remotely exploitable without requiring user interaction or authentication, which increases its risk profile. Despite being classified as critical in the description, the official CVSS 4.0 score is 5.3 (medium severity), reflecting factors such as limited impact on confidentiality, integrity, and availability, and the requirement for low privileges (PR:L). The attack vector is network-based (AV:N), and no user interaction is needed (UI:N). The vulnerability has been publicly disclosed, but there are no known exploits in the wild at this time. The lack of available patches or mitigation links suggests that users of this system must take proactive steps to secure their installations. SQL Injection vulnerabilities can lead to unauthorized data access, data modification, or even full system compromise depending on the database privileges and system architecture. Given the nature of complaint management systems, sensitive personal or organizational data could be at risk if exploited.

For European organizations using the Campcodes Complaint Management System 1.0, this vulnerability poses a significant risk to data confidentiality and integrity. Complaint management systems often store sensitive customer or employee information, including personally identifiable information (PII), complaint details, and internal communications. Exploitation could lead to unauthorized disclosure of sensitive data, data tampering, or disruption of complaint processing workflows. This could result in regulatory non-compliance, especially under GDPR, leading to legal penalties and reputational damage. Additionally, attackers could leverage the vulnerability as a foothold for further network intrusion or lateral movement within an organization’s IT infrastructure. The medium CVSS score suggests limited impact on availability, but the potential for data breach remains a critical concern. European organizations with regulatory obligations and high standards for data protection must prioritize addressing this vulnerability to avoid operational and compliance risks.

Since no official patches or updates are currently available, European organizations should implement immediate compensating controls. These include: 1) Applying strict input validation and parameterized queries or prepared statements to sanitize the 'cid' parameter and other user inputs in the complaint-details.php script. 2) Implementing Web Application Firewalls (WAFs) with rules specifically designed to detect and block SQL injection attempts targeting the vulnerable endpoint. 3) Restricting database user privileges to the minimum necessary, ensuring the application database user cannot perform destructive operations or access unrelated data. 4) Monitoring and logging database queries and web server access to detect anomalous or suspicious activity indicative of exploitation attempts. 5) Conducting code reviews and security testing of the application to identify and remediate other potential injection points. 6) Planning and executing an upgrade or patch deployment as soon as the vendor releases a fix. 7) Educating IT and security teams about this vulnerability to ensure rapid response to any indicators of compromise.