CVE-2025-4360: Gym Management System SQLi Vulnerability

CVE-2025-4360 Overview

A critical SQL injection vulnerability has been identified in itsourcecode Gym Management System version 1.0. The vulnerability exists in the /view_member.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 without authentication, potentially leading to unauthorized data access, data modification, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive member data, modify database records, or potentially escalate to further system compromise through database-level attacks.

Affected Products

• Admerc Gym Management System 1.0
• itsourcecode Gym Management System 1.0

Discovery Timeline

• May 6, 2025 - CVE-2025-4360 published to NVD
• December 22, 2025 - Last updated in NVD database

Technical Details for CVE-2025-4360

Vulnerability Analysis

This SQL injection vulnerability stems from insufficient input validation in the /view_member.php endpoint. When processing the ID parameter, the application fails to properly sanitize user-supplied input before incorporating it into SQL queries. This allows an attacker to craft malicious input that alters the intended SQL command structure, enabling unauthorized database operations.

The network-accessible nature of this vulnerability means attackers can exploit it remotely without requiring any authentication or user interaction. Successful exploitation could allow attackers to read sensitive member information including personal details and payment records, modify or delete database entries, and potentially leverage database functionality for further system access.

Root Cause

The root cause is classic improper input validation (CWE-89: SQL Injection) combined with improper neutralization of special elements (CWE-74: Injection). The application directly concatenates user-supplied input from the ID parameter into SQL queries without implementing prepared statements, parameterized queries, or adequate input sanitization mechanisms.

Attack Vector

The attack vector is network-based, targeting the /view_member.php endpoint. An attacker can craft HTTP requests with malicious SQL payloads in the ID parameter. The vulnerability requires no authentication, no user interaction, and has low attack complexity, making it highly accessible to attackers.

The exploitation mechanism involves manipulating the ID parameter value to include SQL syntax that breaks out of the intended query structure. Attackers can use techniques such as UNION-based injection to extract data from other tables, boolean-based blind injection to infer database contents, or time-based blind injection when direct output is not available. For detailed technical analysis and proof-of-concept information, see the GitHub CVE Issue Discussion and VulDB CVE Analysis.

Detection Methods for CVE-2025-4360

Indicators of Compromise

• Unusual or malformed requests to /view_member.php containing SQL keywords such as UNION, SELECT, DROP, or --
• Web server logs showing requests with encoded SQL injection patterns in the ID parameter
• Database error messages appearing in application responses indicating query syntax errors
• Unexpected database query patterns or execution times in database logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the ID parameter
• Implement application-level logging to capture and alert on suspicious parameter values in /view_member.php requests
• Configure intrusion detection systems (IDS) to identify SQL injection attack signatures in HTTP traffic
• Enable database query logging and monitor for anomalous query structures or unauthorized data access attempts

Monitoring Recommendations

• Monitor web server access logs for repeated requests to /view_member.php with varying ID parameter payloads
• Implement real-time alerting for database errors that may indicate SQL injection attempts
• Track database query execution times and patterns for anomalies suggesting time-based blind SQL injection
• Review application logs regularly for evidence of enumeration or data extraction activities

How to Mitigate CVE-2025-4360

Immediate Actions Required

• Restrict network access to the affected Gym Management System to trusted IP addresses only
• Implement a Web Application Firewall with SQL injection detection rules as a compensating control
• Review web server and database logs for evidence of prior exploitation attempts
• Consider taking the application offline until a proper fix can be implemented

Patch Information

No official vendor patch is currently available for this vulnerability. The affected product is maintained by itsourcecode, and users should monitor the IT Source Code Resource for security updates. Given the lack of an official fix, implementing compensating controls and code-level remediations is essential.

Workarounds

• Modify the /view_member.php source code to implement prepared statements or parameterized queries for all database interactions
• Add strict input validation to ensure the ID parameter only accepts numeric integer values
• Implement a Web Application Firewall to filter malicious SQL injection payloads before they reach the application
• Apply the principle of least privilege to the database user account used by the application to limit potential damage

# Example: Restricting access to the vulnerable endpoint via Apache .htaccess
# Place this in the web application directory

<Files "view_member.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>

# Note: This is a temporary measure - proper code remediation is required