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TP Book Guestbook.PHP HTML Injection Vulnerability

TP-Book is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input before using it in dynamically generated content.

Attacker-supplied HTML and script code would execute in the context of the affected website, potentially allowing an attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user; other attacks are also possible.

TP-Book 1.0 and prior versions are vulnerable to this issue.