Multiple cross-site scripting (XSS) vulnerabilities in SimpGB 1.46.02 allow remote attackers to inject arbitrary web script or HTML via (1) the l_username parameter to the default URI under admin/ or (2) the l_emoticonlist parameter to admin/emoticonlist.php.
SQL injection vulnerability in gb_new.inc in SimpGB allows remote attackers to execute arbitrary SQL commands via the quote parameter to guestbook.php.