CVE-2025-4363
📋 TL;DR
A critical SQL injection vulnerability in itsourcecode Gym Management System 1.0 allows remote attackers to execute arbitrary SQL commands via the 'rid' parameter in the /ajax.php?action=end_membership endpoint. This can lead to unauthorized data access, modification, or deletion. All users running version 1.0 of this software are affected.
💻 Affected Systems
- itsourcecode Gym Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, data destruction, privilege escalation, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized access to sensitive member data (personal information, payment details), modification of membership records, and potential system disruption.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only read access to non-sensitive data.
🎯 Exploit Status
Exploit details are publicly available on GitHub. The vulnerability requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
No official patch available. Consider implementing input validation and parameterized queries in the source code.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allBlock or sanitize SQL injection patterns targeting the /ajax.php endpoint
Endpoint Restriction
allRestrict access to /ajax.php?action=end_membership to authorized users only
🧯 If You Can't Patch
- Implement network segmentation to isolate the Gym Management System from critical databases
- Deploy a web application firewall with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test the /ajax.php?action=end_membership endpoint with SQL injection payloads in the 'rid' parameterCheck Version:
Check the software version in the admin panel or configuration filesVerify Fix Applied:
Verify that SQL injection attempts no longer succeed and that input validation is properly implemented📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts following SQL injection patterns
- Access to /ajax.php with suspicious parameters
Network Indicators:
- HTTP requests to /ajax.php?action=end_membership containing SQL keywords (UNION, SELECT, INSERT, etc.)
SIEM Query:
source="web_logs" AND uri="/ajax.php" AND query="*action=end_membership*" AND (query="*UNION*" OR query="*SELECT*" OR query="*INSERT*")