Multiple SQL injection vulnerabilities in sign.php in Xeobook 0.93 allow remote attackers to execute arbitrary SQL commands via (1) the User-Agent HTTP header, or the (2) gb_entry_text, (3) gb_location, (4) gb_fullname, or (5) gb_sex parameters.

Multiple cross-site scripting (XSS) vulnerabilities in Xeobook 0.93 allow remote attackers to inject arbitrary web script or HTML via Javascript events in tages such as <b>.