Vulnz Agent.

Super-lightweight Vulnz plugin for WordPress.

Built for Performance

Vulnz Agent (vulnz-agent) is the lightweight companion plugin for Vulnz. It acts as the secure bridge between your WordPress site and your Vulnz dashboard.

  • Zero Bloat: No dashboard widgets, no upsell banners, and no persistent background processes.
  • Read-Only: It takes a snapshot of your installed plugins and themes to check for vulnerabilities, but it never modifies your site data.
  • Open Source: Fully transparent and GPLv2 licensed. You can audit every line of code.
# Extract the plugin
$ unzip -q vulnz-agent-2.1.1.zip

# Get plugin's extracted size (it's tiny)
$ du -sh vulnz-agent/
84K	vulnz-agent/

Installation Options

Standard Installation

For individual sites, install it just like any other plugin.

  1. Download the .zip file.
  2. Go to Plugins → Add New → Upload Plugin.
  3. Activate and navigate to Settings → Vulnz Agent.
  4. Enter your API Key (found in your Dashboard).

Agency (mu-plugin)

Extract the plugin into /wp-content/mu-plugins/, then create a loader file wp-content/mu-plugins/vulnz-agent/php.

<?php
/**
* Plugin Name: Vulnz Agent (MU)
* Description: Must-use plugin loader for Vulnz Agent
*/
require_once WPMU_PLUGIN_DIR . '/vulnz-agent/vulnz-agent.php';

Add your Vulnz API credentials to wp-config.php.

define('VULNZ_AGENT_API_URL', 'https://api.vulnz.net');
define('VULNZ_AGENT_API_KEY', 'your-site-key');
define('VULNZ_AGENT_ENABLED', true);

Radical Transparency

We believe you should know exactly what data leaves your server.

The Agent sends only the following technical telemetry to vulnz.net:

✅ WordPress Core Version

✅ PHP Version

✅ Active Plugin List (Slugs & Versions)

✅ Active Theme List

NO User Data or personally identifiable information

NO Database Content

NO Passwords or Keys

Technical Requirements

Any recent version of WordPress & PHP should work fine. These are what recommend, going in to 2026:

  • WordPress: 6.0 or higher
  • PHP: 8.0+ (Optimised for PHP 8.3+)