CVE-2025-9743 is a SQL Injection vulnerability identified in version 1.0 of the code-projects Human Resource Integrated System, specifically within the login_attendance2.php file. The vulnerability arises from improper sanitization or validation of the employee_id and date parameters, allowing an attacker to manipulate these inputs to inject malicious SQL code. This flaw can be exploited remotely without requiring authentication or user interaction, making it particularly dangerous. Successful exploitation could enable an attacker to execute arbitrary SQL commands on the backend database, potentially leading to unauthorized data access, data modification, or deletion. Given that this system manages human resource information, the compromised data could include sensitive employee records, attendance logs, and potentially payroll information. The CVSS 4.0 base score is 6.9, indicating a medium severity level, with attack vector network (remote), low attack complexity, no privileges required, and no user interaction needed. The vulnerability impacts confidentiality, integrity, and availability to a limited extent, as indicated by the CVSS vector components. Although no public exploits are currently known in the wild, the exploit code has been publicly released, increasing the risk of exploitation by opportunistic attackers.

For European organizations using the code-projects Human Resource Integrated System version 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of employee data. Unauthorized access to HR databases could lead to exposure of personal identifiable information (PII), which is subject to strict regulations under GDPR. Data manipulation could disrupt payroll, attendance tracking, and other HR processes, potentially causing operational disruptions and financial losses. Additionally, a successful attack could damage organizational reputation and result in regulatory penalties. Since the vulnerability can be exploited remotely without authentication, attackers can target exposed systems over the internet, increasing the attack surface. Organizations with internet-facing HR systems or insufficient network segmentation are particularly vulnerable. The medium severity rating suggests that while the vulnerability is serious, exploitation may require some knowledge of the system or specific conditions to fully leverage the flaw.

To mitigate this vulnerability, organizations should prioritize the following actions: 1) Apply vendor patches or updates as soon as they become available. If no official patch exists, implement immediate input validation and sanitization on the employee_id and date parameters to prevent SQL injection. 2) Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the affected endpoints. 3) Restrict network access to the Human Resource Integrated System by limiting exposure to trusted internal networks and using VPNs for remote access. 4) Conduct thorough code reviews and security testing on all input handling functions within the application, especially those related to authentication and attendance modules. 5) Monitor logs for unusual database queries or failed login attempts that may indicate exploitation attempts. 6) Educate IT and security teams about the vulnerability and ensure incident response plans include steps for SQL injection attacks. 7) Consider database-level protections such as least privilege access controls and prepared statements or parameterized queries to reduce the impact of injection flaws.