CVE-2026-8839
Vulnérabilité moyenne dans MapPress Maps for WordPress (chrisvrichardson)
Description
The MapPress Maps for WordPress plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to, and including, 2.96.6. This is due to missing ownership verification in the REST API routes registered via `Mappress_Api::rest_api_init()`, where the GET `/wp-json/mapp/v1/maps/{mapid}` endpoint uses `'permission_callback' => '__return_true'` and the write endpoints (POST update, DELETE, PATCH mutate, POST clone, POST empty_trash) only check the generic `edit_posts` capability without confirming that the requester owns the targeted map — a gap that is not compensated at the model layer, as `Mappress_Map::get()`, `save()`, `delete()`, `mutate()`, and `empty_trash()` all operate on any caller-supplied map ID without an ownership check. This makes it possible for unauthenticated attackers to read sensitive map data — including POI titles, addresses, coordinates, and body content — for any map on the site by enumerating map IDs, and for authenticated attackers with Contributor-level access and above to modify, delete, trash/restore, or clone any map regardless of its author.
Gravité et risque d'exploitation
CVE-2026-8839 obtient un score CVSS de 5.3/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.30 %, ce qui la place devant 70.1 % des CVE référencées.
Que faire ?
- Vérifiez si MapPress Maps for WordPress (versions <=2.96.6, 0) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9f402aa7-24d6-448b-a1d3-5ee7c90b39bc?source=cve
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L328
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L328
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L90
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L268
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L39
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L253
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L50
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L75
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L239
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L493
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L379
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L550
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L90
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L268
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L39
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L253
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L50
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L75
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L239
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L493
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L379
- https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L550
- https://plugins.trac.wordpress.org/changeset?old_path=/mappress-google-maps-for-wordpress/tags/2.96.6&new_path=/mappress-google-maps-for-wordpress/tags/2.97.1