CVE-2025-9471 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Apartment Management System, specifically in the /maintenance/add_maintenance_cost.php file. The vulnerability arises from improper sanitization or validation of the 'ID' parameter, which can be manipulated by an attacker to inject malicious SQL code. This flaw allows remote attackers to execute arbitrary SQL commands on the backend database without requiring authentication or user interaction. The vulnerability has a CVSS 4.0 base score of 6.9, indicating a medium severity level. The attack vector is network-based (AV:N), with low attack complexity (AC:L), no privileges required (PR:N), and no user interaction needed (UI:N). The impact on confidentiality, integrity, and availability is low to limited, suggesting that while data exposure or modification is possible, the scope or extent of damage may be constrained. The vulnerability does not affect system confidentiality, integrity, or availability in a critical manner but still poses a risk of unauthorized data access or manipulation. No patches or fixes have been disclosed yet, and no known exploits are reported in the wild. However, the public disclosure of the exploit code increases the risk of exploitation by threat actors. The vulnerability affects only version 1.0 of the software, which is used for managing apartment maintenance costs and related administrative tasks. Given the nature of the system, the backend database likely contains sensitive tenant and financial data, making the exploitation potentially impactful for organizations relying on this software for property management.

For European organizations using the itsourcecode Apartment Management System 1.0, this vulnerability could lead to unauthorized access to sensitive tenant information, financial records, and maintenance data. Exploitation could result in data leakage, unauthorized data modification, or disruption of apartment management operations. Although the CVSS score indicates medium severity, the exposure of personally identifiable information (PII) or financial data could have regulatory implications under GDPR, leading to legal and reputational consequences. Additionally, attackers might leverage this vulnerability as a foothold to pivot within the network, potentially escalating privileges or accessing other systems. The risk is particularly relevant for property management companies, housing associations, and real estate firms in Europe that rely on this software for operational management. The absence of authentication requirements and user interaction lowers the barrier for exploitation, increasing the threat level. However, the limited scope of the vulnerability and lack of known active exploitation somewhat mitigate immediate widespread impact.

1. Immediate mitigation should include implementing input validation and parameterized queries or prepared statements in the affected /maintenance/add_maintenance_cost.php script to prevent SQL injection. 2. If source code modification is not feasible immediately, deploying a Web Application Firewall (WAF) with rules to detect and block SQL injection attempts targeting the 'ID' parameter can provide temporary protection. 3. Conduct a thorough audit of all input handling in the application to identify and remediate similar injection vulnerabilities. 4. Monitor network traffic and application logs for unusual or suspicious database queries or access patterns indicative of exploitation attempts. 5. Restrict database user permissions to the minimum necessary to limit the impact of any successful injection. 6. Engage with the vendor or community to obtain or develop official patches and apply them promptly once available. 7. Educate IT and security teams about this vulnerability and ensure incident response plans include steps for SQL injection attacks. 8. For organizations with multiple deployments, prioritize patching or mitigation in environments with sensitive data or internet-facing exposure.