Index: branches/5.2.x/core/ckeditor/ckfinder/config.php
===================================================================
diff -u -N -r15042 -r15316
--- branches/5.2.x/core/ckeditor/ckfinder/config.php	(.../config.php)	(revision 15042)
+++ branches/5.2.x/core/ckeditor/ckfinder/config.php	(.../config.php)	(revision 15316)
@@ -273,6 +273,13 @@
 $config['CheckDoubleExtension'] = true;
 
 /*
+Increases the security on an IIS web server.
+If enabled, CKFinder will disallow creating folders and uploading files whose names contain characters
+that are not safe under an IIS web server.
+*/
+$config['DisallowUnsafeCharacters'] = false;
+
+/*
 If you have iconv enabled (visit http://php.net/iconv for more information),
 you can use this directive to specify the encoding of file names in your
 system. Acceptable values can be found at:
@@ -338,7 +345,6 @@
 */
 $config['ForceAscii'] = false;
 
-
 include_once "plugins/imageresize/plugin.php";
 include_once "plugins/fileeditor/plugin.php";