CVE-2025-9600: Admerc Apartment Management SQL Injection

CVE-2025-9600 Overview

A SQL injection vulnerability has been identified in itsourcecode Apartment Management System version 1.0. The vulnerability exists in the file /setting/member_type_setup.php where the txtMemberType parameter is not properly sanitized, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, potentially compromising the confidentiality, integrity, and availability of the application's database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially gain unauthorized access to the underlying system through the unvalidated txtMemberType parameter.

Affected Products

• Admerc Apartment Management System 1.0
• itsourcecode Apartment Management System 1.0

Discovery Timeline

• 2025-08-29 - CVE-2025-9600 published to NVD
• 2025-09-02 - Last updated in NVD database

Technical Details for CVE-2025-9600

Vulnerability Analysis

This SQL injection vulnerability occurs due to improper input validation in the member type setup functionality of the Apartment Management System. The vulnerable endpoint at /setting/member_type_setup.php accepts user-supplied input through the txtMemberType parameter without adequate sanitization or parameterized query implementation. As a result, an attacker can craft malicious SQL statements that are concatenated directly into database queries, allowing unauthorized data manipulation or extraction.

The vulnerability is network-accessible and requires no authentication or user interaction to exploit, making it particularly dangerous for internet-facing deployments. The exploit has been publicly disclosed, increasing the risk of widespread exploitation.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries (prepared statements) when handling the txtMemberType parameter. The application directly incorporates user-supplied input into SQL queries without escaping special characters or using database API features that prevent injection attacks. This represents a classic CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) vulnerability pattern.

Attack Vector

The attack vector for CVE-2025-9600 is network-based, requiring no authentication or special privileges. An attacker can send crafted HTTP requests to the vulnerable /setting/member_type_setup.php endpoint with malicious SQL payloads in the txtMemberType parameter. The exploitation technique involves appending SQL syntax to the legitimate parameter value to alter the query logic, potentially using UNION-based injection, boolean-based blind injection, or time-based blind injection techniques depending on the application's error handling and response behavior.

For technical details on the exploitation methodology, refer to the GitHub Issue Discussion where the vulnerability was publicly documented.

Detection Methods for CVE-2025-9600

Indicators of Compromise

• Unusual database query patterns or errors in application logs related to /setting/member_type_setup.php
• HTTP requests containing SQL syntax characters (', ", --, ;, UNION, SELECT) in the txtMemberType parameter
• Unexpected database access patterns or data extraction activities
• Error messages revealing database structure information in server responses

Detection Strategies

• Implement web application firewall (WAF) rules to detect SQL injection patterns in HTTP requests targeting the vulnerable endpoint
• Monitor application logs for anomalous requests to /setting/member_type_setup.php containing special characters
• Deploy intrusion detection systems (IDS) with SQL injection signature detection capabilities
• Review database query logs for unusual SELECT, UNION, or data extraction operations

Monitoring Recommendations

• Enable detailed logging for all requests to the /setting/ directory and related PHP endpoints
• Configure database audit logging to track query execution patterns and identify injection attempts
• Set up alerts for failed authentication attempts or unusual data access patterns following requests to the vulnerable endpoint
• Monitor network traffic for potential data exfiltration activities following successful exploitation

How to Mitigate CVE-2025-9600

Immediate Actions Required

• Restrict network access to the Apartment Management System to trusted IP addresses or internal networks only
• Implement a web application firewall (WAF) with SQL injection protection rules
• Review access logs for evidence of prior exploitation attempts against the vulnerable endpoint
• Consider temporarily disabling the member type setup functionality until a patch is applied

Patch Information

At the time of publication, no official vendor patch has been released for this vulnerability. Organizations using the affected Apartment Management System should monitor the IT Source Code Homepage for security updates and patch releases. Additionally, the VulDB #321774 entry provides ongoing tracking of this vulnerability.

Workarounds

• Implement input validation on the txtMemberType parameter at the application level to reject SQL special characters
• Use a reverse proxy or WAF to filter malicious SQL injection payloads before they reach the application
• Modify the application code to use prepared statements with parameterized queries for database operations
• Restrict database user permissions to limit the potential impact of successful SQL injection attacks

# Example WAF rule configuration (ModSecurity)
# Block SQL injection attempts on the vulnerable parameter
SecRule ARGS:txtMemberType "@detectSQLi" \
    "id:100001,\
    phase:2,\
    block,\
    log,\
    msg:'SQL Injection Attempt Blocked - CVE-2025-9600',\
    logdata:'Matched Data: %{MATCHED_VAR}'"