CVE-2026-3138

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.0/classes/controller.php#L99
• https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.0/classes/frame.php#L280
• https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.0/classes/frame.php#L416
• https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.0/classes/table.php#L345
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3487143%40woo-product-filter%2Ftrunk&old=3479545%40woo-product-filter%2Ftrunk&sfp_email=&sfph_mail=#file2
• https://wordpress.org/plugins/woo-product-filter/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/085a4fae-c3f4-45f9-ab30-846c6297d04e?source=cve