Index: branches/5.2.x/core/kernel/managers/url_manager.php
===================================================================
diff -u -r16513 -r16806
--- branches/5.2.x/core/kernel/managers/url_manager.php	(.../url_manager.php)	(revision 16513)
+++ branches/5.2.x/core/kernel/managers/url_manager.php	(.../url_manager.php)	(revision 16806)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: url_manager.php 16513 2017-01-20 14:10:53Z alex $
+* @version	$Id: url_manager.php 16806 2024-10-20 18:26:11Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2010 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -464,6 +464,11 @@
 		$not_found = $this->Application->ConfigValue('ErrorTemplate');
 		$template = $not_found ? $not_found : 'error_notfound';
 
+		// Avoid recursion, when attempt is made to show 404 page while on the 404 page.
+		if ( $this->Application->GetVar('t') === $template ) {
+			return;
+		}
+
 		$this->Application->QuickRun($template);
 		$this->Application->Done();
 		exit;