CVE-2025-4483: Gym Management System SQLi Vulnerability

CVE-2025-4483 Overview

A SQL Injection vulnerability has been discovered in itsourcecode Gym Management System version 1.0. The vulnerability exists in the /view_pdetails.php file, where the ID parameter is improperly validated before being used in SQL queries. This flaw allows remote attackers to inject malicious SQL commands, potentially leading to unauthorized data access, modification, or deletion within the application's database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability without authentication to extract sensitive member data, bypass access controls, or manipulate database contents in the Gym Management System.

Affected Products

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

Discovery Timeline

• 2025-05-09 - CVE-2025-4483 published to NVD
• 2025-12-22 - Last updated in NVD database

Technical Details for CVE-2025-4483

Vulnerability Analysis

This SQL injection vulnerability affects the /view_pdetails.php endpoint in the Gym Management System. The vulnerability stems from improper handling of the ID parameter, which is directly incorporated into SQL queries without adequate input sanitization or parameterized query implementation. This allows attackers to craft malicious input that alters the intended SQL query logic.

The vulnerability can be exploited remotely over the network without requiring any user interaction or authentication. Successful exploitation could allow attackers to read sensitive data from the database, modify or delete records, and potentially gain administrative access to the application.

Root Cause

The root cause is a classic injection vulnerability (CWE-74) where user-controlled input from the ID parameter is concatenated directly into SQL statements without proper validation, escaping, or the use of prepared statements. This allows special SQL characters and commands in user input to be interpreted as part of the query structure rather than as literal data values.

Attack Vector

The vulnerability is exploited via network-based attacks targeting the ID parameter in the /view_pdetails.php endpoint. An attacker can send specially crafted HTTP requests containing SQL injection payloads in the ID parameter. Since no authentication is required, any remote attacker with network access to the application can attempt exploitation.

The attack pattern typically involves appending SQL syntax such as OR 1=1, UNION SELECT statements, or time-based blind injection techniques to the parameter value to extract data or manipulate the database. The exploit has been publicly disclosed, increasing the risk of widespread exploitation.

Detection Methods for CVE-2025-4483

Indicators of Compromise

• Unusual or malformed requests to /view_pdetails.php containing SQL keywords or special characters in the ID parameter
• Database error messages appearing in application logs or HTTP responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Evidence of data exfiltration or unauthorized modifications to member records

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests
• Monitor web server access logs for requests to /view_pdetails.php with suspicious parameter values containing SQL syntax
• Enable database query logging and alert on anomalous query patterns or error rates
• Deploy intrusion detection systems (IDS) with signatures for common SQL injection attack payloads

Monitoring Recommendations

• Configure real-time alerting for SQL-related error messages in application logs
• Monitor for high volumes of requests to the vulnerable endpoint from single IP addresses
• Track database access patterns for unusual SELECT, UNION, or data extraction operations
• Implement anomaly detection for database query execution times that may indicate time-based blind SQL injection attempts

How to Mitigate CVE-2025-4483

Immediate Actions Required

• Remove or restrict access to the Gym Management System until a patch is available or code remediation is applied
• Implement a Web Application Firewall (WAF) with SQL injection protection rules in front of the application
• Review and sanitize all user input handling in /view_pdetails.php and throughout the application
• Consider placing the application behind authentication or IP-based access controls to limit exposure

Patch Information

No official vendor patch has been released at the time of this writing. Organizations using this software should contact the vendor or monitor the IT Source Code Blog for security updates. Additional technical details are available via the VulDB advisory and the GitHub CVE Issue Discussion.

Workarounds

• Implement parameterized queries (prepared statements) in the PHP code to prevent SQL injection
• Apply strict input validation on the ID parameter to accept only expected numeric values
• Deploy a WAF or reverse proxy with SQL injection filtering capabilities
• Restrict network access to the application to trusted IP ranges only
• Disable detailed error messages to prevent information disclosure to attackers

# Example: Basic input validation in PHP (recommended remediation approach)
# Replace direct query concatenation with prepared statements
# Before: $query = "SELECT * FROM members WHERE id = " . $_GET['ID'];
# After: Use PDO prepared statements with parameter binding
# $stmt = $pdo->prepare("SELECT * FROM members WHERE id = :id");
# $stmt->execute(['id' => (int)$_GET['ID']]);