Update shared_cron_functions.php

modules/cron/shared_cron_functions.php

@@ -257,7 +257,7 @@ function checkCronInput($min, $hour, $day, $month, $dayOfWeek) {
     $args = func_get_args();
     
     foreach ($args as $k => $arg) {
-        if (empty($arg) || strpbrk($arg, $blacklist)) {
+        if (empty($arg) || strpbrk($arg, $blacklist) || preg_match('/\\s/', $arg)) {
             $returns[$k] = false;
         }
     }
@@ -265,4 +265,4 @@ function checkCronInput($min, $hour, $day, $month, $dayOfWeek) {
     return (empty($returns) ? true : false);
 }
 
-?>
+?>