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TITLE:
Sethi Family Guestbook Multiple Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA39597

VERIFY ADVISORY:
http://secunia.com/advisories/39597/

DESCRIPTION:
Valentin Hoebel has discovered some vulnerabilities in Sethi Family
Guestbook, which can be exploited by malicious people to conduct
cross-site scripting attacks.

Input passed to the "number", "bg", and "f" parameters in index.php
is not properly sanitised before being returned to the user. This can
be exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

The vulnerabilities are confirmed in version 3.1.8. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Valentin Hoebel

ORIGINAL ADVISORY:
http://www.xenuser.org/documents/security/sethi_family_guestbook_xss.txt

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