CVE-2026-8839

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.

Source: NVD

References

• [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-8839
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L253
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L268
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L328
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L39
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L50
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L75
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_api.php#L90
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L239
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L379
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L493
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.95.10/mappress_map.php#L550
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L253
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L268
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L328
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L39
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L50
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L75
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_api.php#L90
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L239
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L379
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L493
• [Other]https://plugins.trac.wordpress.org/browser/mappress-google-maps-for-wordpress/tags/2.96.6/mappress_map.php#L550
• [Other]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
• [Other]https://www.wordfence.com/threat-intel/vulnerabilities/id/9f402aa7-24d6-448b-a1d3-5ee7c90b39bc?source=cve

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