CVE-2025-9593: Apartment Management System SQLi Flaw

CVE-2025-9593 Overview

A SQL injection vulnerability has been identified in itsourcecode Apartment Management System version 1.0. The flaw exists in the /report/unit_status_info.php file, where improper handling of the usid parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, potentially compromising the confidentiality, integrity, and availability of the underlying database.

Critical Impact
Remote attackers can exploit this SQL injection vulnerability to extract sensitive tenant and property management data, modify database records, or potentially compromise the underlying database server.

Affected Products

Admerc Apartment Management System 1.0
itsourcecode Apartment Management System 1.0

Discovery Timeline

2025-08-28 - CVE-2025-9593 published to NVD
2025-09-03 - Last updated in NVD database

Technical Details for CVE-2025-9593

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) affects the unit status reporting functionality in the Apartment Management System. The vulnerable endpoint /report/unit_status_info.php accepts a usid parameter that is not properly sanitized before being incorporated into SQL queries.

When user-supplied input is directly concatenated into SQL statements without proper parameterization or input validation, attackers can manipulate the query logic. This allows unauthorized access to database contents, modification of data, or in some cases, execution of administrative operations on the database server.

The vulnerability is network-accessible, requiring no authentication or user interaction to exploit. The exploit has been publicly disclosed and may be actively used by threat actors targeting vulnerable installations.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries when processing the usid argument in /report/unit_status_info.php. The application directly incorporates user-supplied input into SQL query construction, allowing attackers to inject arbitrary SQL commands that are then executed by the database engine.

Attack Vector

The attack can be executed remotely over the network without requiring authentication. An attacker can craft malicious HTTP requests to the vulnerable endpoint, injecting SQL syntax through the usid parameter. The injected payload is processed by the application and executed against the backend database.

Typical exploitation involves manipulating the usid parameter value to include SQL metacharacters and commands. This could enable attackers to perform UNION-based attacks to extract data from other tables, boolean-based blind injection to enumerate database contents, or time-based techniques to exfiltrate information when direct output is not available.

For detailed technical analysis and proof-of-concept information, refer to the GitHub CVE Issue Discussion and VulDB #321767.

Detection Methods for CVE-2025-9593

Indicators of Compromise

Unusual or malformed requests to /report/unit_status_info.php containing SQL syntax in the usid parameter
Web server logs showing requests with characters like single quotes ('), double dashes (--), UNION, SELECT, or OR 1=1 patterns
Database error messages in application logs indicating SQL syntax errors
Unexpected database queries or data access patterns in database audit logs

Detection Strategies

Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the usid parameter
Configure IDS/IPS signatures to alert on SQL injection attack patterns in HTTP traffic to apartment management systems
Enable detailed logging on the web server and database to capture suspicious query patterns
Deploy application-level monitoring to detect anomalous parameter values in requests to /report/unit_status_info.php

Monitoring Recommendations

Monitor web application logs for repeated requests to the vulnerable endpoint with varying usid values
Set up alerts for database errors that may indicate failed injection attempts
Review database query logs for unusual SELECT statements or UNION operations
Implement real-time alerting for requests containing known SQL injection payloads

How to Mitigate CVE-2025-9593

Immediate Actions Required

Restrict access to the /report/unit_status_info.php endpoint using network-level controls or authentication requirements
Implement input validation on the usid parameter to accept only expected numeric values
Deploy a Web Application Firewall with SQL injection protection rules in front of the application
Consider taking the vulnerable endpoint offline until a proper fix can be implemented

Patch Information

No official vendor patch has been identified for this vulnerability at the time of publication. Organizations using the affected Apartment Management System should contact the vendor for remediation guidance or consider implementing the workarounds described below.

For additional information, refer to IT Source Code and the VulDB CTI #321767.

Workarounds

Implement parameterized queries (prepared statements) for all database operations involving user input
Add strict input validation to ensure the usid parameter contains only numeric characters
Deploy WAF rules specifically targeting SQL injection patterns on the vulnerable endpoint
Restrict network access to the Apartment Management System to trusted IP addresses only

bash

# Example Apache .htaccess restriction for vulnerable endpoint
<Files "unit_status_info.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>