CVE-2025-9594 is a SQL Injection vulnerability identified in version 1.0 of the itsourcecode Apartment Management System, specifically within an unspecified function in the /report/complain_info.php file. The vulnerability arises from improper sanitization or validation of the 'vid' parameter, which an attacker can manipulate to inject malicious SQL code. This injection flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands against the backend database without any user interaction. The vulnerability is exploitable over the network (AV:N), requires no privileges (PR:N), no authentication (AT:N), and no user interaction (UI:N), making it relatively easy to exploit. The impact on confidentiality, integrity, and availability is low to limited (VC:L, VI:L, VA:L), indicating that while the attacker can potentially access or modify some data, the scope and severity of damage are somewhat contained. The CVSS 4.0 base score is 6.9, categorizing it as a medium severity vulnerability. Although no known exploits are currently observed in the wild, the public disclosure of the exploit code increases the risk of exploitation. The lack of available patches or mitigations from the vendor further elevates the urgency for affected users to implement protective measures. SQL Injection vulnerabilities typically allow attackers to read sensitive data, modify or delete records, and in some cases escalate privileges or execute commands on the underlying system, depending on the database and application configuration. Given the vulnerability affects a management system for apartment complexes, attackers could potentially access tenant information, complaint records, or other sensitive operational data, leading to privacy breaches or operational disruptions.

For European organizations using the itsourcecode Apartment Management System 1.0, this vulnerability poses a significant risk to data confidentiality and integrity. Apartment management systems often store personally identifiable information (PII) of tenants, including names, contact details, payment information, and complaint histories. Exploitation could lead to unauthorized disclosure of this sensitive data, violating GDPR and other privacy regulations prevalent in Europe, potentially resulting in legal penalties and reputational damage. Additionally, attackers might alter complaint records or other operational data, disrupting management processes and causing service interruptions. Although the vulnerability's impact on availability is limited, the potential for data manipulation and leakage is critical in the context of tenant privacy and trust. The ease of remote exploitation without authentication increases the threat level, especially for organizations that have not applied any mitigations or compensating controls. Furthermore, the public availability of exploit code could lead to opportunistic attacks targeting less-secure deployments across Europe.

Given the absence of official patches, European organizations should immediately implement the following specific mitigations: 1) Employ Web Application Firewalls (WAFs) configured to detect and block SQL injection patterns, particularly targeting the 'vid' parameter in requests to /report/complain_info.php. 2) Conduct thorough input validation and sanitization at the application layer, ensuring all user-supplied inputs are properly escaped or parameterized before database queries. 3) Restrict database user privileges to the minimum necessary, preventing the application from performing unauthorized data modifications or administrative actions. 4) Monitor application logs and database query logs for unusual or suspicious activity indicative of SQL injection attempts. 5) If feasible, isolate the affected application component within a segmented network zone to limit lateral movement in case of compromise. 6) Engage with the vendor or community to obtain or develop patches or updated versions addressing this vulnerability. 7) Educate IT and security teams about this specific vulnerability and ensure incident response plans include steps for SQL injection incidents. 8) Regularly back up critical data to enable recovery in case of data tampering or loss.