Software: Guestbook
Title: Toms G=E4stebuch 1.00
Version: 1.0
Type: XSS
Date: Sat Aug 11 21:52:08 CEST 2007
Vendor: Fitz Thomas
Page: http://www.toms-seiten.at/ 

vulnerability:
----------------------------
http://example.com/form.php?action=show&homepage=[XSS]&mail=[XSS]&name=[XSS] 
http://example.com/admin/header.php?language=[XSS]&anzeigebreite=[XSS] 
http://example.com/install.php?msg=[XSS] 

The vendor has been informed.