Vulnerability in WP Maps – Google Maps,OpenStreetMap,Mapbox,Store Locator,Listing,Directory & Filters — CVE-2026-13179
What to do now
Update WP Maps – Google Maps,OpenStreetMap,Mapbox,Store Locator,Listing,Directory & Filters to 5.0.0 or later.
Affected versions
- Everything up to and including 4.9.8
Affected: WP Maps – Google Maps,OpenStreetMap,Mapbox,Store Locator,Listing,Directory & Filters (plugin, wp-google-map-plugin)
What the vulnerability is
The WP Maps – Google Maps,OpenStreetMap,Mapbox,Store Locator,Listing,Directory & Filters plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shapes_values Parameter in all versions up to, and including, 4.9.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The fc-call-nonce nonce required by the endpoint is exposed to all frontend visitors who view a map page via window.wpgmp_local.nonce, enabling any authenticated subscriber to read the nonce and craft a valid request; additionally, the secondary _wpnonce check in the drawing handler can be bypassed by simply omitting the _wpnonce parameter from the request.
Sources
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.3/assets/js/maps.js#L8477
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.3/modules/drawing/views/manage.php#L32
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.3/modules/shortcode/views/put-wpgmp.php#L1263
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.3/wp-google-map-plugin.php#L605
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.3/wp-google-map-plugin.php#L619
- https://plugins.trac.wordpress.org/browser/wp-google-map-plugin/tags/4.9.5/assets/js/maps.js#L8477