CVE-2025-57148
📋 TL;DR
phpgurukul Online Shopping Portal 2.0 contains an arbitrary file upload vulnerability in the admin product upload functionality. Attackers can upload malicious files like webshells to gain remote code execution. This affects all systems running the vulnerable version of this e-commerce software.
💻 Affected Systems
- phpgurukul Online Shopping Portal
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via webshell upload leading to data theft, ransomware deployment, or use as attack platform
Likely Case
Webshell upload allowing persistent backdoor access, data exfiltration, and further lateral movement
If Mitigated
File upload attempts blocked or quarantined with no execution capability
🎯 Exploit Status
Exploitation requires admin credentials but file upload bypass is trivial once authenticated
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
1. Check vendor website for updated version
2. If patch exists, backup database and files
3. Replace vulnerable files with patched version
4. Test functionality
🔧 Temporary Workarounds
Implement file upload validation
allAdd server-side file extension validation and content checking
Modify /admin/insert-product.php to validate file extensions (php, asp, jsp, etc.) and use mime-type checking
Restrict admin access
linuxLimit admin panel access to trusted IPs only
Add .htaccess rules to restrict /admin/ directory: Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
🧯 If You Can't Patch
- Disable file upload functionality in admin panel
- Implement WAF rules to block file uploads with dangerous extensions
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a file with .php extension via /admin/insert-product.php and check if it's acceptedCheck Version:
Check software version in admin panel or readme filesVerify Fix Applied:
Test file upload with malicious extensions - should be rejected with proper error📡 Detection & Monitoring
Log Indicators:
- File uploads to /admin/insert-product.php with unusual extensions
- POST requests with file uploads to admin area
- Files with .php, .asp, .jsp extensions in upload directories
Network Indicators:
- Large POST requests to admin upload endpoint
- Subsequent requests to uploaded files in unusual locations
SIEM Query:
source="web_logs" AND (uri="/admin/insert-product.php" AND method="POST" AND size>100000) OR (uri MATCH "*.php" AND referer CONTAINS "/admin/")