Index: moodle/admin/uploadpicture.php
--- moodle/admin/uploadpicture.php Base (1.1.2.7)
+++ moodle/admin/uploadpicture.php Locally Modified (Based On 1.1.2.7)
@@ -195,12 +195,6 @@
     $path_parts = pathinfo(cleardoubleslashes($file));
     $basename  = $path_parts['basename'];
     $extension = $path_parts['extension'];
-    if ($basename != clean_param($basename, PARAM_CLEANFILE)) {
-        // The original picture file name has invalid characters
-        notify(get_string('uploadpicture_invalidfilename', 'admin',
-                          clean_param($basename, PARAM_CLEANHTML)));
-        return PIX_FILE_ERROR;
-    }
 
     // The picture file name (without extension) must match the
     // userfield attribute.