HIOX Free Guest Book Index.PHP HTML Injection Vulnerability

HIOX Free Guest Book Index.PHP HTML Injection Vulnerability

HIOX FREE Guest Book is prone to an HTML-injection vulnerability because it fails to sufficiently sanitize user-supplied input data.

Exploiting this issue may allow an attacker to execute HTML and script code in the context of the affected site, to steal cookie-based authentication credentials, or to control how the site is rendered to the user; other attacks are also possible.

HIOX FREE Guest Book 4.0 is vulnerable; other versions may also be affected.