Ticket #16226: 16226.patch

src/wp-includes/formatting.php

@@ -1069 +1069 @@
  */
 function sanitize_file_name( $filename ) {
         $filename_raw = $filename;
-        $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0));
+        $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%", "+", chr(0));
         /**
          * Filter the list of characters to remove from a filename.
          *