artmedic weblog multiple xss vulnerabilities

download http://artmedic-phpscripts.de/index.php?did=artmedic_weblog.zip 

author     muuratsalo
contact    muuratsalo[at]gmail.com

exploits
http://localhost/artmedic_weblog/artmedic_print.php?date= 
http://localhost/artmedic_weblog/index.php?jahrneu=