diff --git a/classes/context/Context.class.php b/classes/context/Context.class.php
index f098e6e5b..82bb6c9d8 100644
--- a/classes/context/Context.class.php
+++ b/classes/context/Context.class.php
@@ -141,8 +141,9 @@ class Context
 	private static $_oFrontEndFileHandler = null;
 
 	/**
-	 * Plugin blacklist cache
+	 * Plugin default and blacklist cache
 	 */
+	private static $_default_plugins = null;
 	private static $_blacklist = null;
 
 	/**
@@ -2590,6 +2591,27 @@ class Context
 		return Rhymix\Framework\Router::getRewriteLevel();
 	}
 
+	/**
+	 * Check whether an addon, layout, module, or widget is distributed with Rhymix core.
+	 * 
+	 * @param string $plugin_name
+	 * @param string $type
+	 * @return bool
+	 */
+	public static function isDefaultPlugin($plugin_name, $type)
+	{
+		if (self::$_default_plugins === null)
+		{
+			self::$_default_plugins = (include RX_BASEDIR . 'common/defaults/plugins.php');
+			if (!is_array(self::$_default_plugins))
+			{
+				self::$_default_plugins = array();
+			}
+		}
+		
+		return isset(self::$_default_plugins[$type][$plugin_name]);
+	}
+	
 	/**
 	 * Check whether an addon, module, or widget is blacklisted
 	 * 
diff --git a/common/defaults/plugins.php b/common/defaults/plugins.php
new file mode 100644
index 000000000..53ea36d9f
--- /dev/null
+++ b/common/defaults/plugins.php
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * Rhymix Default Plugins
+ * 
+ * Copyright (c) Rhymix Developers and Contributors
+ */
+return array(
+	
+	// Addons
+	'addon' => array(
+		'adminlogging' => true,
+		'autolink' => true,
+		'counter' => true,
+		'member_extra_info' => true,
+		'photoswipe' => true,
+		'point_level_icon' => true,
+	),
+	
+	// Layouts
+	'layout' => array(
+		'colorCode' => true,
+		'default' => true,
+		'simpleGray' => true,
+		'user_layout' => true,
+		'xedition' => true,
+	),
+	
+	// Modules
+	'module' => array(
+		'addon' => true,
+		'admin' => true,
+		'adminlogging' => true,
+		'advanced_mailer' => true,
+		'autoinstall' => true,
+		'board' => true,
+		'comment' => true,
+		'communication' => true,
+		'counter' => true,
+		'document' => true,
+		'editor' => true,
+		'file' => true,
+		'importer' => true,
+		'install' => true,
+		'integration_search' => true,
+		'krzip' => true,
+		'layout' => true,
+		'member' => true,
+		'menu' => true,
+		'message' => true,
+		'module' => true,
+		'ncenterlite' => true,
+		'page' => true,
+		'point' => true,
+		'poll' => true,
+		'rss' => true,
+		'session' => true,
+		'spamfilter' => true,
+		'tag' => true,
+		'trash' => true,
+		'widget' => true,
+	),
+	
+	// Widgets
+	'widget' => array(
+		'content' => true,
+		'counter_status' => true,
+		'language_select' => true,
+		'login_info' => true,
+		'mcontent' => true,
+		'pollWidget' => true,
+	),
+);