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TITLE:
WX-Guestbook Script Insertion and SQL Injection

SECUNIA ADVISORY ID:
SA36806

VERIFY ADVISORY:
http://secunia.com/advisories/36806/

DESCRIPTION:
learn3r has reported some vulnerabilities in WX-Guestbook, which can
be exploited by malicious people to conduct script insertion and SQL
injection attacks.

1) Input passed via the "sName" parameter to sign.php is not properly
sanitised before being used. This can be exploited to insert arbitrary
HTML and script code, which will be executed in a user's browser
session in context of an affected site when the malicious data is
being displayed.

2) Input passed via the "USERNAME" parameter to login.php and the
"QUERY" parameter to search.php is not properly sanitised before
being used in an SQL query. This can be exploited to manipulate SQL
queries by injecting arbitrary SQL code.

The vulnerabilities are reported in version 1.1.208. Other versions
may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
learn3r

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/9730

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