CVE-2012-10019 – The Front End Editor WordPress plugin before ve... (How to Fix)

📋 TL;DR

The Front End Editor WordPress plugin before version 2.3 allows unauthenticated attackers to upload arbitrary files due to missing file type validation in upload.php. This vulnerability affects WordPress sites using vulnerable versions of the plugin and can lead to remote code execution.

💻 Affected Systems

Products:

WordPress Front End Editor plugin

Versions: All versions before 2.3

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects WordPress installations with the vulnerable plugin active.

📦 What is this software?

Front End Editor by Scribu

View all CVEs affecting Front End Editor →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server compromise via remote code execution, allowing attackers to install backdoors, steal data, deface websites, or pivot to internal networks.

🟠

Likely Case

Website defacement, malware distribution, or credential theft through uploaded web shells.

🟢

If Mitigated

Limited impact if file uploads are restricted at web server level or plugin is disabled.

🌐 Internet-Facing: HIGH

🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: CONFIRMED

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploit code is publicly available and requires no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.3

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=600233%40front-end-editor&old=569105%40front-end-editor&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Front End Editor plugin
4. Click 'Update Now' if available
5. If no update available, deactivate and delete the plugin
6. Install version 2.3 or later from WordPress plugin repository

🔧 Temporary Workarounds

Disable plugin

all

Deactivate the Front End Editor plugin immediately

Restrict file uploads

linux

Add web server rules to block uploads to vulnerable endpoint

# Apache .htaccess
RewriteEngine On
RewriteRule ^wp-content/plugins/front-end-editor/upload\.php$ - [F,L]
# Nginx
location ~ ^/wp-content/plugins/front-end-editor/upload\.php$ { deny all; }

🧯 If You Can't Patch

Immediately deactivate the Front End Editor plugin
Implement web application firewall rules to block requests to /wp-content/plugins/front-end-editor/upload.php

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Front End Editor version number. If version is below 2.3, the site is vulnerable.

Check Version:

# Check plugin version via WordPress database
SELECT option_value FROM wp_options WHERE option_name = 'active_plugins' AND option_value LIKE '%front-end-editor%';

Verify Fix Applied:

Confirm plugin version is 2.3 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

POST requests to /wp-content/plugins/front-end-editor/upload.php
Uploads of files with extensions like .php, .phtml, .php5 in plugin directory
Unusual file creation in wp-content/uploads/ or plugin directories

Network Indicators:

HTTP POST requests to upload.php endpoint with file uploads
Traffic patterns showing file uploads to plugin directory

SIEM Query:

source="web_server_logs" AND (uri_path="/wp-content/plugins/front-end-editor/upload.php" OR file_extension IN ("php", "phtml", "php5"))

📊 Metadata

CVE ID: CVE-2012-10019

CVSS v3 Score: 9.8 (CRITICAL)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-434

EPSS Score: 64.63% exploit probability (98.4th percentile)

Published: July 19, 2025

Last Updated: December 19, 2025

🔗 References

https://packetstormsecurity.com/files/132303/ Exploit,Third Party Advisory,VDB Entry
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=600233%40front-end-editor&old=569105%40front-end-editor&sfp_email=&sfph_mail= Product
https://web.archive.org/web/20120712205339/https%3A//www.opensyscom.fr/Actualites/wordpress-plugins-front-end-editor-arbitrary-file-upload-vulnerability.html Exploit,Third Party Advisory
https://www.cybersecurity-help.cz/vdb/SB2012070701 Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/f271c2e7-9d58-4dea-95d3-3ffc4ec7c3b2?source=cve Third Party Advisory

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