WordPress Custom Map 1.1 Cross Site Scripting

WordPress Custom Map plugin version 1.1 suffers from a cross site scripting vulnerability.

MD5 | cc4062b6e2d3a8c56dbd9b296155e778

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:
echo $map_id=$_REQUEST['map_id'];


** Proof of Concept **

** 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 [email protected]; no reply
05/12/2017: vendor contacted through [email protected]; 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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