CVE-2014-5014

9.8 CRITICAL

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary commands on WordPress sites using the Flash Uploader plugin before version 3.1.3. Attackers can exploit improper input validation in the image_magic_path parameter to inject and execute system commands. Any WordPress site with the vulnerable plugin version is affected.

💻 Affected Systems

Products:
  • WordPress Flash Uploader Plugin
Versions: All versions before 3.1.3
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the plugin to be installed and activated on WordPress.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with remote code execution, allowing attackers to install malware, steal data, deface websites, or pivot to internal networks.

🟠

Likely Case

Website defacement, data theft, or installation of backdoors for persistent access.

🟢

If Mitigated

Limited impact with proper network segmentation and least privilege configurations, potentially only affecting the web application layer.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation involves manipulating the image_magic_path parameter with invalid characters to inject commands.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.1.3

Vendor Advisory: https://wordpress.org/plugins/wordpress-flash-uploader/changelog/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WordPress Flash Uploader' and click 'Update Now' if available. 4. Alternatively, download version 3.1.3+ from WordPress plugin repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate wordpress-flash-uploader

Remove Plugin

all

Completely remove the plugin from the WordPress installation.

wp plugin delete wordpress-flash-uploader

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block requests containing command injection patterns in image_magic_path parameter.
  • Restrict network access to affected WordPress instances and implement network segmentation to limit potential lateral movement.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel under Plugins > Installed Plugins for 'WordPress Flash Uploader' version. If version is below 3.1.3, it is vulnerable.

Check Version:

wp plugin get wordpress-flash-uploader --field=version

Verify Fix Applied:

Confirm plugin version is 3.1.3 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to upload endpoints with suspicious characters in parameters
  • System command execution logs from web server process

Network Indicators:

  • HTTP requests containing shell metacharacters like ;, |, &, or $( ) in image_magic_path parameter

SIEM Query:

source="web_logs" AND (url_path="/wp-content/plugins/wordpress-flash-uploader/" OR parameter="image_magic_path") AND (parameter_value MATCHES '[;|&$()]')

🔗 References

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