source: https://www.securityfocus.com/bid/13783/info

BookReview is prone to multiple cross-site scripting vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input.

An attacker may leverage these issues to have arbitrary script code executed in the browser of an unsuspecting user. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.

http://www.example.com/search.htm?page=search&submit%5Bstring%5D=%5C%22%3E%3Cscript%3Ealert%28document.cookie%29%3C%2Fscript%3E&submit=Ok&submit%5Btype%5D=author