CVE-2025-4362
📋 TL;DR
A critical SQL injection vulnerability in itsourcecode Gym Management System 1.0 allows remote attackers to execute arbitrary SQL commands via the member_id parameter in /ajax.php?action=save_membership. This can lead to unauthorized data access, modification, or deletion. All users running version 1.0 without proper input validation are affected.
💻 Affected Systems
- itsourcecode Gym Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, 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 privilege escalation.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or failed queries.
🎯 Exploit Status
Exploit details are publicly available on GitHub. SQL injection vulnerabilities are commonly weaponized due to their prevalence and impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. If patch available, download and apply
3. Test functionality after patching
4. No official patch is currently documented
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize member_id parameter before processing
Modify /ajax.php to validate member_id parameter using is_numeric() or prepared statements
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule to block requests containing SQL keywords in member_id parameter
🧯 If You Can't Patch
- Isolate the system behind a firewall with strict access controls
- Implement network segmentation to limit database access from application servers
🔍 How to Verify
Check if Vulnerable:
Test /ajax.php?action=save_membership with SQL injection payloads in member_id parameter and observe database errors or unexpected behaviorCheck Version:
Check application version in admin panel or readme filesVerify Fix Applied:
Test with same payloads after remediation - should receive proper error handling or validation messages instead of SQL errors📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries from web server IP
- Multiple failed login attempts or parameter manipulation
Network Indicators:
- HTTP requests to /ajax.php with SQL keywords in parameters
- Unusual database traffic patterns from web servers
SIEM Query:
source="web_logs" AND uri="/ajax.php" AND (param="member_id" AND value MATCH "(?i)(union|select|insert|update|delete|drop|--|#|;)")