CVE-2024-51919

9.0 CRITICAL

📋 TL;DR

This vulnerability allows unauthenticated attackers to upload arbitrary files to WordPress sites running the Fancy Product Designer plugin. Attackers can upload malicious files like PHP shells to gain remote code execution. All WordPress sites using affected plugin versions are vulnerable.

💻 Affected Systems

Products:
  • Fancy Product Designer WordPress Plugin
Versions: n/a through 6.4.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable plugin versions are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server compromise leading to data theft, ransomware deployment, or use as part of a botnet.

🟠

Likely Case

Website defacement, malware distribution, or backdoor installation for persistent access.

🟢

If Mitigated

Limited impact if file execution is prevented through web server configuration or file type restrictions.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Simple HTTP POST requests can exploit this vulnerability without authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 6.4.4 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/fancy-product-designer/vulnerability/wordpress-fancy-product-designer-plugin-6-4-3-unauthenticated-arbitrary-file-upload-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find Fancy Product Designer plugin
4. Click 'Update Now' if update available
5. Alternatively, download version 6.4.4+ from WordPress repository and manually update

🔧 Temporary Workarounds

Web Server File Restriction

all

Configure web server to block execution of uploaded files in upload directories

For Apache: Add 'Options -ExecCGI' and 'RemoveHandler .php .php3 .php4 .php5 .php7 .phtml' to upload directory .htaccess
For Nginx: Add 'location ~* \.(php|php3|php4|php5|php7|phtml)$ { deny all; }' to upload directory config

Temporary Plugin Deactivation

linux

Disable the plugin until patched version is available

wp plugin deactivate fancy-product-designer

🧯 If You Can't Patch

  • Immediately disable the Fancy Product Designer plugin
  • Implement strict file upload restrictions at web server level

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Fancy Product Designer version number

Check Version:

wp plugin get fancy-product-designer --field=version

Verify Fix Applied:

Verify plugin version is 6.4.4 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to /wp-content/uploads/fancy_products_uploads/
  • POST requests to /wp-admin/admin-ajax.php with 'action=fpd_upload' parameter
  • Files with double extensions like .php.jpg

Network Indicators:

  • HTTP POST requests uploading executable files to WordPress endpoints
  • Traffic spikes to upload directories

SIEM Query:

source="web_logs" AND (uri="/wp-admin/admin-ajax.php" AND parameters="action=fpd_upload")

🔗 References

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