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TITLE:
Open Guestbook Cross-Site Scripting and SQL Injection

SECUNIA ADVISORY ID:
SA20796

VERIFY ADVISORY:
http://secunia.com/advisories/20796/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
Open Guestbook 0.x
http://secunia.com/product/10652/

DESCRIPTION:
Moroccan Security Team has discovered two vulnerabilities in Open
Guestbook, which can be exploited by malicious people to conduct
cross-site scripting and SQL injection attacks.

1) Input passed to the "title" parameter in header.php isn't 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.

2) Input passed to the "offset" parameter in view.php isn't properly
sanitised before being used in a SQL query. This can be exploited to
manipulate SQL queries by injecting arbitrary SQL code.

The vulnerabilities have been confirmed in version 0.5. Other
versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
Simo64, Moroccan Security Team

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About:
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