WordPress · Wp Amaps · CVE-2026-13179
**Name of the Vulnerable Software and Affected Versions**
WP Maps – Google Maps,OpenStreetMap,Mapbox,Store Locator,Listing,Directory & Filters versions prior to 4.9.9
**Description**
Insufficient input sanitization and output escaping allow authenticated attackers with subscriber-level access and above to perform Stored Cross-Site Scripting (XSS), a technique where malicious scripts are permanently stored on the target server. Attackers can inject arbitrary web scripts via the `shapes values` parameter, which execute when a user visits the affected page. The `fc-call-nonce` nonce required by the endpoint is exposed to all frontend visitors through `window.wpgmp local.nonce`, allowing authenticated subscribers to craft valid requests. Furthermore, the secondary ` wpnonce` check in the drawing handler can be bypassed by omitting the ` wpnonce` parameter from the request.
**Recommendations**
Update to version 4.9.9 or later.
Avoid using the `shapes values` parameter until the update is applied.