CVE-2023-52221
📋 TL;DR
This vulnerability allows unauthenticated attackers to upload arbitrary files to WordPress sites running the affected plugin, potentially leading to remote code execution. It affects all WordPress installations using the UkrSolution Barcode Scanner and Inventory manager plugin versions up to 1.5.1.
💻 Affected Systems
- UkrSolution Barcode Scanner and Inventory manager WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise via webshell upload leading to data theft, ransomware deployment, or site defacement.
Likely Case
Attackers upload PHP webshells to gain persistent access and execute arbitrary commands on the server.
If Mitigated
File uploads are blocked or properly validated, preventing malicious file execution.
🎯 Exploit Status
Exploit requires simple HTTP POST requests with malicious file uploads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.2 or later
Vendor Advisory: https://wordpress.org/plugins/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Barcode Scanner with Inventory & Order Manager'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate barcode-scanner-lite-pos-to-manage-products-inventory-and-orders
Web Application Firewall Rule
allBlock file upload requests to vulnerable plugin endpoints.
Block POST requests to /wp-content/plugins/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/*
🧯 If You Can't Patch
- Remove plugin entirely from WordPress installation
- Implement strict file upload validation at web server level
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Barcode Scanner with Inventory & Order Manager → Version number.Check Version:
wp plugin get barcode-scanner-lite-pos-to-manage-products-inventory-and-orders --field=versionVerify Fix Applied:
Confirm plugin version is 1.5.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to plugin upload endpoints
- Unusual file creations in wp-content/uploads or plugin directories
Network Indicators:
- HTTP POST requests with file uploads to plugin-specific paths
- Subsequent requests to uploaded PHP files
SIEM Query:
source="web_logs" AND (uri_path="/wp-content/plugins/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/*" AND method="POST")🔗 References
- https://patchstack.com/database/vulnerability/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/wordpress-barcode-scanner-with-inventory-order-manager-plugin-1-5-1-unauthenticated-arbitrary-file-upload-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/barcode-scanner-lite-pos-to-manage-products-inventory-and-orders/wordpress-barcode-scanner-with-inventory-order-manager-plugin-1-5-1-unauthenticated-arbitrary-file-upload-vulnerability?_s_id=cve
