CVE-2025-13421 identifies a SQL injection vulnerability in the itsourcecode Human Resource Management System version 1.0, specifically within the /src/store/NoticeStore.php file. The vulnerability arises due to insufficient input validation or sanitization of the noticeDesc parameter, which is used in SQL queries. This flaw allows an unauthenticated remote attacker to inject arbitrary SQL commands by manipulating the noticeDesc argument, potentially leading to unauthorized data access, data modification, or denial of service. The vulnerability does not require authentication or user interaction, increasing its risk profile. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the attack vector is network-based with low complexity and no privileges required, but with limited impact on confidentiality, integrity, and availability. No known exploits have been reported in the wild yet, but public disclosure means attackers could develop exploits. The lack of available patches or official remediation guidance necessitates immediate attention from users of this HRMS. The vulnerability could be exploited to extract sensitive employee information, alter HR records, or disrupt HR services, which are critical for organizational operations.

For European organizations, exploitation of this SQL injection vulnerability could lead to unauthorized disclosure of sensitive employee data, including personal identification and payroll information, thereby violating GDPR and other data protection regulations. Integrity of HR data could be compromised, resulting in incorrect personnel records or payroll errors, which could disrupt business operations and employee trust. Availability impacts could arise if attackers execute commands that cause database corruption or denial of service, affecting HR system accessibility. The reputational damage and potential regulatory fines from data breaches could be significant. Organizations relying on this HRMS version without mitigation are at risk of targeted attacks, especially those with large employee bases or sensitive HR data. The vulnerability's remote exploitability and lack of authentication requirements increase the likelihood of opportunistic attacks, making it a pressing concern for European enterprises managing workforce data.

Organizations should immediately conduct a thorough code audit of the /src/store/NoticeStore.php file to identify and remediate improper input handling of the noticeDesc parameter. Implement parameterized queries or prepared statements to prevent SQL injection. If source code modification is not feasible, consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block malicious SQL injection payloads targeting this parameter. Network segmentation and strict access controls should limit exposure of the HRMS to only trusted internal networks. Regularly monitor logs for suspicious query patterns or anomalies related to the noticeDesc parameter. Engage with the vendor or community to obtain or develop official patches or updates. Additionally, conduct employee data backups and ensure incident response plans are updated to address potential data breaches. Finally, perform penetration testing focused on SQL injection vectors to validate the effectiveness of mitigations.