CVE-2025-3045: Apartment Visitor Management SQL Injection

CVE-2025-3045 Overview

A critical SQL injection vulnerability has been discovered in the Apartment Visitor Management System version 1.0, developed by oretnom23 (SourceCodester). The vulnerability exists in the /remove-apartment.php file, where improper handling of the ID parameter allows attackers to inject malicious SQL queries. This flaw enables remote attackers to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion of apartment and visitor records.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive visitor information, modify apartment records, or potentially compromise the entire database through crafted SQL statements targeting the ID parameter.

Affected Products

• Apartment Visitor Management System 1.0
• oretnom23 apartment_visitor_management_system

Discovery Timeline

• 2025-04-01 - CVE-2025-3045 published to NVD
• 2025-05-27 - Last updated in NVD database

Technical Details for CVE-2025-3045

Vulnerability Analysis

This SQL injection vulnerability originates from insufficient input validation in the /remove-apartment.php endpoint. The application fails to properly sanitize or parameterize the ID argument before incorporating it into SQL queries. When processing apartment removal requests, the application directly concatenates user-supplied input into database queries, creating a classic injection point.

The vulnerability is remotely exploitable and requires low privileges to execute. An authenticated attacker with basic system access can craft malicious requests containing SQL injection payloads in the ID parameter. Successful exploitation can result in unauthorized access to visitor records, apartment data, and potentially other sensitive information stored in the database.

Root Cause

The root cause of CVE-2025-3045 is the use of unsanitized user input in database queries. The /remove-apartment.php script accepts the ID parameter without implementing proper input validation, parameterized queries, or prepared statements. This allows attackers to break out of the intended SQL context and execute arbitrary SQL commands against the backend database.

Attack Vector

The attack is network-based and can be launched remotely against vulnerable installations. An attacker would target the /remove-apartment.php endpoint and manipulate the ID parameter with SQL injection payloads. The exploit has been disclosed publicly, increasing the risk of exploitation.

The attack flow involves sending HTTP requests to the vulnerable endpoint with malicious SQL syntax embedded in the ID parameter. Depending on the database configuration and application permissions, attackers may be able to perform UNION-based, error-based, or blind SQL injection attacks to extract data, modify records, or escalate privileges within the database system.

Detection Methods for CVE-2025-3045

Indicators of Compromise

• Unusual HTTP requests to /remove-apartment.php containing SQL syntax characters such as single quotes, double dashes, or UNION statements
• Database error messages in application logs indicating malformed SQL queries
• Unexpected database query patterns or access to tables beyond normal application behavior
• Authentication anomalies or unauthorized data modifications in apartment and visitor records

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the ID parameter
• Monitor HTTP access logs for requests to /remove-apartment.php containing suspicious characters or SQL keywords
• Deploy database activity monitoring to identify anomalous query patterns or unauthorized data access attempts
• Configure intrusion detection systems with signatures for common SQL injection attack vectors

Monitoring Recommendations

• Enable detailed logging for the /remove-apartment.php endpoint and related database operations
• Set up alerts for SQL syntax errors or database exceptions originating from the vulnerable script
• Monitor for bulk data extraction or unusual SELECT query volumes against visitor management tables
• Implement real-time log analysis to correlate suspicious web requests with database activity

How to Mitigate CVE-2025-3045

Immediate Actions Required

• Restrict access to the Apartment Visitor Management System to trusted networks or IP addresses
• Implement input validation on the ID parameter to accept only numeric values
• Deploy a Web Application Firewall with SQL injection protection rules
• Review application logs for signs of prior exploitation attempts

Patch Information

No official vendor patch information is currently available for CVE-2025-3045. Organizations using Apartment Visitor Management System 1.0 should contact the developer through SourceCodester for patch availability or consider implementing code-level fixes. Refer to VulDB #302106 for additional tracking information and updates.

Workarounds

• Implement parameterized queries or prepared statements in the /remove-apartment.php file to prevent SQL injection
• Add server-side input validation to ensure the ID parameter contains only expected numeric values
• Consider temporarily disabling the apartment removal functionality until proper fixes can be implemented
• Deploy network-level access controls to limit exposure of the vulnerable application

# Example: Restrict access to vulnerable endpoint via Apache .htaccess
<Files "remove-apartment.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>