CVE-2026-3138

Description

The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable to unauthorized data loss due to a missing capability check in all versions up to, and including, 3.1.2. This is due to the plugin's MVC framework dynamically registering unauthenticated AJAX handlers via `wp_ajax_nopriv_` hooks without verifying user capabilities, combined with the base controller's `__call()` magic method forwarding undefined method calls to the model layer, and the `havePermissions()` method defaulting to `true` when no permissions are explicitly defined. This makes it possible for unauthenticated attackers to truncate the plugin's `wp_wpf_filters` database table via a crafted AJAX request with `action=delete`, permanently destroying all filter configurations.

PUBLISHED Reserved 2026-02-24 | Published 2026-03-24 | Updated 2026-04-08 | Assigner Wordfence

Problem types

CWE-862 Missing Authorization

Product status

Timeline

Credits

Youssef Elouaer finder

References

www.wordfence.com/...-c3f4-45f9-ab30-846c6297d04e?source=cve

wordpress.org/plugins/woo-product-filter/

plugins.trac.wordpress.org/...r/tags/3.1.0/classes/frame.php

plugins.trac.wordpress.org/...r/tags/3.1.0/classes/frame.php

plugins.trac.wordpress.org/...s/3.1.0/classes/controller.php

plugins.trac.wordpress.org/...r/tags/3.1.0/classes/table.php

plugins.trac.wordpress.org/...%2Ftrunk&sfp_email=&sfph_mail=

cve.org (CVE-2026-3138)

nvd.nist.gov (CVE-2026-3138)

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