CVE-2025-2656
📋 TL;DR
A critical SQL injection vulnerability in PHPGurukul Zoo Management System 2.1 allows attackers to manipulate database queries through the username parameter in the admin login page. This enables potential authentication bypass, data theft, or system compromise. All deployments of version 2.1 with the vulnerable /admin/login.php file are affected.
💻 Affected Systems
- PHPGurukul Zoo Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including admin account takeover, database exfiltration, and potential remote code execution through SQL injection chaining.
Likely Case
Authentication bypass leading to unauthorized admin access, sensitive data exposure, and potential data manipulation.
If Mitigated
Limited impact with proper input validation and WAF rules blocking SQL injection patterns.
🎯 Exploit Status
Exploit details are publicly disclosed on GitHub. The vulnerability requires no authentication and has simple exploitation vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://phpgurukul.com/
Restart Required: No
Instructions:
Check vendor website for security updates. If no patch available, implement workarounds immediately.
🔧 Temporary Workarounds
Input Validation and Sanitization
PHPImplement parameterized queries and input validation for the username field in /admin/login.php
Modify login.php to use prepared statements: $stmt = $conn->prepare('SELECT * FROM users WHERE username = ?'); $stmt->bind_param('s', $username);
Web Application Firewall Rules
allDeploy WAF rules to block SQL injection patterns targeting the login endpoint
Add WAF rule: Block requests to /admin/login.php containing SQL keywords like UNION, SELECT, INSERT, DELETE, DROP, OR 1=1
🧯 If You Can't Patch
- Isolate the Zoo Management System behind a reverse proxy with strict input validation
- Implement network segmentation to limit database access from the web application
🔍 How to Verify
Check if Vulnerable:
Test the /admin/login.php endpoint with SQL injection payloads in the username parameter (e.g., admin' OR '1'='1)Check Version:
Check system documentation or configuration files for version informationVerify Fix Applied:
Attempt SQL injection tests after implementing fixes; successful queries should be blocked or sanitized📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts with SQL syntax in username field
- Unusual database query patterns from web server
Network Indicators:
- HTTP POST requests to /admin/login.php containing SQL keywords
- Abnormal response sizes from login endpoint
SIEM Query:
source="web_logs" AND uri="/admin/login.php" AND (username CONTAINS "UNION" OR username CONTAINS "SELECT" OR username CONTAINS "OR 1=1")