CorryL has discovered a vulnerability in Link Request Contact Form, which can be exploited by malicious people to compromise a vulnerable system.

The output.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.

The vulnerability is confirmed in version 3.4. Other versions may also be affected.

Solution
Restrict access to the uploads/ directory (e.g. with ".htaccess").

Provided and/or discovered by
CorryL

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://corryl.altervista.org/index.php?mod=read&id=1181469701

Deep Links
Links available to Secunia VIM customers