Multiple cross-site scripting (XSS) vulnerabilities in the WP Google Maps plugin before 6.0.27 for WordPress allow remote attackers to inject arbitrary web script or HTML via the poly_id parameter in an (1) edit_poly, (2) edit_polyline, or (3) edit_marker action in the wp-google-maps-menu page to wp-admin/admin.php.
https://wordpress.org/plugins/wp-google-maps/changelog
http://www.securityfocus.com/bid/70597
http://www.securityfocus.com/archive/1/533699/100/0/threaded