CVE-2025-13286
📋 TL;DR
CVE-2025-13286 is an SQL injection vulnerability in itsourcecode Online Voting System 1.0 that allows attackers to manipulate database queries through the /ajax.php?action=save_user endpoint. This affects all deployments of version 1.0, potentially enabling unauthorized data access or modification. Remote exploitation is possible without authentication.
💻 Affected Systems
- itsourcecode Online Voting System
📦 What is this software?
Online Voting System by Angeljudesuarez
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including voter data theft, ballot manipulation, system takeover, and potential credential harvesting.
Likely Case
Unauthorized access to sensitive voting data, voter information exfiltration, and potential system integrity compromise.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
Exploit code is publicly available on GitHub. The vulnerability requires no authentication and has simple exploitation vectors.
🛠️ 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 no patch available, implement workarounds 3. Consider migrating to alternative voting system
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns targeting /ajax.php?action=save_user endpoint
# Example ModSecurity rule: SecRule ARGS:ID "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
# Add to .htaccess: RewriteCond %{QUERY_STRING} action=save_user [NC] RewriteRule ^ajax\.php$ - [F,L]
Input Validation Filter
allAdd input validation to sanitize ID parameter before processing
# PHP example: $id = filter_var($_GET['ID'], FILTER_VALIDATE_INT); if ($id === false) { die('Invalid input'); }
🧯 If You Can't Patch
- Isolate the voting system behind a reverse proxy with strict input validation
- Implement network segmentation to restrict database access and monitor all queries to the affected endpoint
🔍 How to Verify
Check if Vulnerable:
Test the /ajax.php?action=save_user endpoint with SQL injection payloads like: /ajax.php?action=save_user&ID=1' OR '1'='1Check Version:
Check system documentation or admin panel for version information. Look for version 1.0 in source code or configuration files.Verify Fix Applied:
Verify that SQL injection payloads no longer execute and return proper error handling📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from web server
- Multiple failed login attempts or SQL errors in application logs
- Requests to /ajax.php?action=save_user with suspicious parameters
Network Indicators:
- SQL error messages in HTTP responses
- Unusual database connection patterns from web server
- High volume of requests to vulnerable endpoint
SIEM Query:
source="web_logs" AND uri_path="/ajax.php" AND query_string="*action=save_user*" AND (query_string="*' OR*" OR query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*--*" OR query_string="*/*")