CVE-2025-9419 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Apartment Management System, specifically within an unknown function in the /unit/addunit.php file. The vulnerability arises from improper sanitization or validation of the 'ID' argument, which allows an attacker to manipulate SQL queries executed by the application. This flaw enables remote attackers to inject malicious SQL code without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/PR:N/UI:N). The vulnerability impacts the confidentiality, integrity, and availability of the backend database, potentially allowing attackers to extract sensitive data, modify or delete records, or disrupt service. The CVSS 4.0 base score of 6.9 classifies this as a medium severity issue, reflecting the ease of exploitation combined with limited scope and impact. Although no public exploits are currently known in the wild, the exploit code is publicly available, increasing the risk of exploitation. The vulnerability affects only version 1.0 of the product, and no official patches or mitigations have been published yet. Given the nature of apartment management systems, which typically handle tenant data, billing information, and property management details, exploitation could lead to significant data breaches and operational disruptions.

For European organizations using the itsourcecode Apartment Management System 1.0, this vulnerability poses a significant risk to the confidentiality of tenant personal data, including names, contact details, and payment information. Integrity of records such as lease agreements and billing could be compromised, leading to fraudulent activities or financial losses. Availability of the system could also be affected if attackers execute destructive SQL commands, causing denial of service. Given the GDPR regulations in Europe, any data breach resulting from exploitation could lead to severe legal and financial penalties. Additionally, the disruption of apartment management operations could impact residents and property managers, causing reputational damage. The remote and unauthenticated nature of the vulnerability increases the risk, especially for organizations that expose the management system to the internet without adequate network protections.

European organizations should immediately audit their deployments of the itsourcecode Apartment Management System to identify if version 1.0 is in use. If so, they should restrict external access to the /unit/addunit.php endpoint via network-level controls such as firewalls or VPNs. Implementing Web Application Firewalls (WAF) with SQL Injection detection rules can help block exploitation attempts. Since no official patches are available, organizations should consider applying custom input validation and parameterized queries in the affected code if source code access is possible. Regularly monitoring logs for suspicious SQL query patterns or unusual database activity is critical. Additionally, organizations should review and enhance database user permissions to follow the principle of least privilege, limiting the potential damage of an injection attack. Finally, planning for an upgrade to a patched or newer version of the software once available is essential to fully remediate the vulnerability.