CVE-2023-33922

4.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in Elementor Website Builder for WordPress. It allows unauthorized users to perform actions that should require proper authentication, affecting all WordPress sites using Elementor versions up to 3.13.2.

💻 Affected Systems

Products:
  • Elementor Website Builder
Versions: n/a through 3.13.2
Operating Systems: All platforms running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with Elementor plugin installed and enabled.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Unauthenticated attackers could modify website content, inject malicious scripts, or alter site configurations leading to complete site compromise.

🟠

Likely Case

Attackers could deface websites, inject ads or malicious content, or modify site elements without authorization.

🟢

If Mitigated

With proper access controls and monitoring, impact would be limited to unauthorized content modifications that could be detected and reverted.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Broken access control vulnerabilities are commonly exploited and require minimal technical skill.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.13.3 and later

Vendor Advisory: https://elementor.com/help/elementor-security-update/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Elementor and click 'Update Now'. 4. Verify update completes successfully.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable Elementor plugin until patched

wp plugin deactivate elementor

Access Restriction

linux

Restrict access to WordPress admin and Elementor endpoints via web server configuration

# Add to .htaccess for Apache:
<FilesMatch "\.(php|inc)$">
Order Deny,Allow
Deny from all
</FilesMatch>
# Add to nginx config:
location ~ /\.ht {
    deny all;
}

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can reach the WordPress admin interface.
  • Enable comprehensive logging and monitoring for unauthorized access attempts to Elementor endpoints.

🔍 How to Verify

Check if Vulnerable:

Check Elementor plugin version in WordPress admin under Plugins > Installed Plugins

Check Version:

wp plugin get elementor --field=version

Verify Fix Applied:

Verify Elementor version is 3.13.3 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized POST requests to Elementor endpoints
  • Unexpected modifications to Elementor content or settings
  • Access attempts from unusual IP addresses to /wp-admin/admin-ajax.php

Network Indicators:

  • Unusual traffic patterns to Elementor-specific endpoints
  • POST requests to Elementor API without proper authentication headers

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "elementor") AND http_method="POST" AND user_agent NOT IN ("normal_user_agents")

🔗 References

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