CVE-2025-4484
📋 TL;DR
This critical SQL injection vulnerability in itsourcecode Gym Management System 1.0 allows remote attackers to execute arbitrary SQL commands via the ID parameter in the /ajax.php?action=delete_user endpoint. Attackers can potentially read, modify, or delete database contents, including sensitive user information. All deployments of Gym Management System 1.0 with the vulnerable endpoint accessible are affected.
💻 Affected Systems
- itsourcecode Gym Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access and modification, including extraction of user credentials, personal information, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without modification.
🎯 Exploit Status
Exploit details are publicly available on GitHub. SQL injection vulnerabilities are commonly weaponized due to their simplicity and impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates. Consider implementing workarounds or replacing the software.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns targeting the /ajax.php endpoint with delete_user action.
Input Validation Filter
allAdd server-side input validation to sanitize the ID parameter, allowing only numeric values.
🧯 If You Can't Patch
- Block external access to /ajax.php endpoint at network firewall or load balancer
- Implement strict database user permissions with least privilege principle
🔍 How to Verify
Check if Vulnerable:
Test the /ajax.php?action=delete_user endpoint with SQL injection payloads like ' OR '1'='1 in the ID parameter and observe database errors or unexpected behavior.Check Version:
Check application files or documentation for version information. The vulnerability is specific to version 1.0.Verify Fix Applied:
After implementing fixes, retest with SQL injection payloads to confirm they are blocked or sanitized without affecting legitimate functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple requests to /ajax.php with suspicious ID parameters
- Database query patterns with SQL keywords from web requests
Network Indicators:
- HTTP requests containing SQL injection patterns targeting /ajax.php?action=delete_user
SIEM Query:
source="web_logs" AND uri_path="/ajax.php" AND query_string="*action=delete_user*" AND (query_string="*' OR*" OR query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*--*" OR query_string="*;*" OR query_string="*/*")