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TITLE:
W-Agora Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA24605

VERIFY ADVISORY:
http://secunia.com/advisories/24605/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, Manipulation of data, System access

WHERE:
>From remote

SOFTWARE:
W-Agora 4.x
http://secunia.com/product/911/

DESCRIPTION:
laurent gaffié has discovered some vulnerabilities in W-Agora, which
can be exploited by malicious people to conduct cross-site scripting
and SQL injection attacks or compromise a vulnerable system.

1) The browse_avatar.php script fails to validate the extension of an
uploaded file. This can be exploited to upload files with the ".php"
extension and execute arbitrary PHP code on the server.

Successful exploitation requires passing an allowed MIME media type
in the HTTP headers.

2) Input passed to the "search_forum" parameter in search.php is not
properly sanitised before being used in SQL queries. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

3) Input passed to the "showuser" parameter in profile.php is not
properly sanitised before being returned to a 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 4.2.1. Other versions
may also be affected.

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

Use another product.

PROVIDED AND/OR DISCOVERED BY:
laurent gaffié

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