Because of no validation on a curl command in MagpieRSS 0.72 in the /extlib/Snoopy.class.inc file, when you send a request to the /scripts/magpiedebug.php or /scripts/magpiesimple.php page, it's possible to request any internal page if you use a https request.

Because of a incorrect escaped exec command in MagpieRSS in 0.72 in the /extlib/Snoopy.class.inc file, it is possible to add a extra command to the curl binary. This creates an issue on the /scripts/magpiedebug.php and /scripts/magpiesimple.php page that if you send a specific https url in the RSS URL field, you are able to execute arbitrary commands.