[SA20781] GL-SH Deaf Forum show.php Cross-Site Scripting

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TITLE:
GL-SH Deaf Forum show.php Cross-Site Scripting

SECUNIA ADVISORY ID:
SA20781

VERIFY ADVISORY:
http://secunia.com/advisories/20781/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
GL-SH Deaf Forum 6.x
http://secunia.com/product/10637/

DESCRIPTION:
Some vulnerabilities have been discovered in GL-SH Deaf Forum, which
can be exploited by malicious people to conduct cross-site scripting
attacks.

1) Input passed to the "sort" parameter in show.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.

2) Input passed to the "search", "page", and "action" parameters in
show.php is also 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 have been confirmed in version 6.4.3. Other
versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
1) r0t
2) Reported by an anonymous person.

ORIGINAL ADVISORY:
1) http://pridels.blogspot.com/2006/06/gl-sh-deaf-forum-xss-vuln.html

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