CVE-2025-9510: Admerc Apartment Management SQLi Flaw

CVE-2025-9510 Overview

A SQL injection vulnerability has been identified in itsourcecode Apartment Management System version 1.0. The vulnerability exists in the /branch/addbranch.php file, where improper handling of the ID parameter allows attackers to inject malicious SQL queries. This flaw can be exploited remotely without authentication, potentially enabling unauthorized access to the underlying database, data manipulation, and information disclosure.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially escalate privileges within the apartment management system.

Affected Products

• Admerc Apartment Management System version 1.0
• itsourcecode Apartment Management System implementations using vulnerable /branch/addbranch.php endpoint

Discovery Timeline

• 2025-08-27 - CVE-2025-9510 published to NVD
• 2025-09-02 - Last updated in NVD database

Technical Details for CVE-2025-9510

Vulnerability Analysis

This SQL injection vulnerability affects the /branch/addbranch.php file within the Apartment Management System. The vulnerability arises from insufficient input validation and sanitization of the ID parameter before it is incorporated into SQL queries. When user-supplied data is directly concatenated into database queries without proper escaping or parameterized statements, attackers can manipulate the query logic to execute arbitrary SQL commands.

The exploit has been publicly disclosed, increasing the risk of active exploitation. Organizations using this software should treat remediation as a priority given the network-accessible nature of the attack vector.

Root Cause

The root cause of this vulnerability is improper input validation (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component). The application fails to sanitize user-controlled input in the ID parameter before using it in database queries. This allows specially crafted input containing SQL syntax to modify the intended query structure, enabling injection attacks.

Attack Vector

The attack can be initiated remotely over the network without requiring authentication or user interaction. An attacker can send malicious HTTP requests to the /branch/addbranch.php endpoint with a crafted ID parameter containing SQL injection payloads. Successful exploitation could allow the attacker to:

• Extract sensitive tenant and property management data from the database
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially escalate privileges depending on database configuration

The vulnerability is exploited by manipulating the ID parameter in requests to the affected PHP endpoint. For example, an attacker might append SQL syntax such as ' OR '1'='1 or more sophisticated payloads to extract data using UNION-based or error-based injection techniques. Technical details and proof-of-concept information are available in the GitHub CVE Issue Discussion.

Detection Methods for CVE-2025-9510

Indicators of Compromise

• Unusual database queries or errors in application logs related to /branch/addbranch.php
• Web access logs showing malformed or suspicious ID parameter values containing SQL syntax characters (', ", ;, --, UNION, SELECT)
• Unexpected database modifications or data exfiltration patterns
• Authentication bypass attempts or unauthorized access to administrative functions

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the ID parameter
• Monitor HTTP request logs for suspicious payloads targeting /branch/addbranch.php
• Deploy database activity monitoring to detect anomalous queries or unauthorized data access
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for all requests to the /branch/addbranch.php endpoint
• Set up alerts for database query failures or syntax errors that may indicate injection attempts
• Regularly audit database access logs for unauthorized queries or data extraction
• Implement real-time monitoring for unusual patterns in web application traffic

How to Mitigate CVE-2025-9510

Immediate Actions Required

• Restrict network access to the Apartment Management System to trusted IP addresses only
• Implement input validation and sanitization for the ID parameter in /branch/addbranch.php
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Review and harden database user permissions to limit potential damage from successful exploitation

Patch Information

No official vendor patch has been identified at this time. Organizations should monitor the IT Source Code website for security updates. Additional vulnerability details are available through VulDB #321504.

Workarounds

• Implement parameterized queries (prepared statements) for all database interactions in the affected file
• Apply strict input validation to reject any ID parameter values containing special SQL characters
• Use a WAF to filter malicious SQL injection payloads before they reach the application
• Consider taking the affected endpoint offline until a proper fix can be implemented
• Implement network segmentation to limit exposure of the vulnerable application

To mitigate SQL injection vulnerabilities, the affected code should use parameterized queries instead of string concatenation. For PHP applications, this typically involves using PDO or MySQLi prepared statements. The ID parameter should be validated to ensure it contains only expected characters (e.g., numeric values) before use in any database query. Organizations should also review all database interaction points in the application for similar vulnerabilities.