CVE-2025-8336 is a critical SQL Injection vulnerability identified in Campcodes Online Recruitment Management System version 1.0. The vulnerability exists in the /admin/ajax.php endpoint, specifically when handling the 'action=save_user' request parameter. The flaw arises due to improper sanitization or validation of the 'ID' argument, allowing an attacker to inject malicious SQL code. This injection can be exploited remotely without requiring authentication or user interaction, making it highly accessible to attackers. The vulnerability allows attackers to manipulate backend database queries, potentially leading to unauthorized data access, data modification, or deletion. Given that the affected system is an online recruitment management platform, sensitive personal data such as candidate information, resumes, and possibly internal HR data could be exposed or altered. The CVSS 4.0 score is 6.9, indicating a medium severity level, with the vector showing network attack vector, low attack complexity, no privileges or user interaction required, and low impact on confidentiality, integrity, and availability. However, the public disclosure of the exploit increases the risk of exploitation. No patches or fixes have been linked yet, and no known exploits are reported in the wild at the time of publication. The vulnerability's presence in a recruitment management system used by organizations for hiring processes makes it a significant concern for data privacy and operational integrity.

For European organizations using Campcodes Online Recruitment Management System 1.0, this vulnerability poses a considerable risk to the confidentiality and integrity of sensitive recruitment data. Exploitation could lead to unauthorized access to personal data of job applicants and employees, potentially violating GDPR regulations and resulting in legal and financial penalties. Data manipulation could disrupt recruitment workflows, causing operational delays and reputational damage. Since the attack can be launched remotely without authentication, attackers could leverage this vulnerability to gain a foothold within the organization's network or exfiltrate sensitive information. The medium CVSS score suggests moderate impact, but the critical classification and public exploit disclosure elevate the urgency. Organizations in sectors with high recruitment volumes or handling sensitive personal data, such as government agencies, large enterprises, and staffing firms, are particularly vulnerable. Additionally, the lack of available patches means organizations must rely on immediate mitigation strategies to protect their systems.

1. Immediate mitigation should include implementing Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the /admin/ajax.php?action=save_user endpoint, specifically filtering suspicious 'ID' parameter inputs. 2. Conduct a thorough code review and input validation audit of the affected endpoint to identify and sanitize all user inputs, employing parameterized queries or prepared statements to prevent SQL injection. 3. Restrict access to the /admin/ajax.php endpoint by IP whitelisting or VPN access to limit exposure to trusted users only. 4. Monitor logs for unusual database query patterns or repeated access attempts to the vulnerable endpoint to detect potential exploitation attempts. 5. Engage with the vendor Campcodes for official patches or updates and plan for timely application once available. 6. As a longer-term measure, consider migrating to updated or alternative recruitment management systems with robust security practices. 7. Ensure that backups of recruitment data are current and securely stored to enable recovery in case of data tampering.