Woobewoo Product Filter for WooCommerce by WBW Plugin up to 3.4.6 on WordPress AJAX wp_ajax_nopriv_filtersFrontend default_query improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Woobewoo Product Filter for WooCommerce by WBW Plugin up to 3.4.6. The affected element is the function wp_ajax_nopriv_filtersFrontend of the component AJAX Handler. Executing a manipulation of the argument default_query can lead to improper authorization. This vulnerability is registered as CVE-2026-11396. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Woobewoo Product Filter for WooCommerce by WBW Plugin up to 3.4.6. This vulnerability affects the function wp_ajax_nopriv_filtersFrontend of the component AJAX Handler. The manipulation of the argument default_query with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable to Missing Authorization / Information Disclosure in all versions up to, and including, 3.4.6 via the 'filterSettings[default_query]' parameter of the 'filtersFrontend' AJAX action. The handler is registered as 'wp_ajax_nopriv_filtersFrontend' and performs no capability or nonce check; raw POST data is JSON-decoded into $filterSettings and the attacker-controlled 'default_query' array is unconditionally array_merge()'d into the WP_Query arguments, overriding the plugin's safe defaults (most notably post_status, post_type, posts_per_page, and nopaging). This makes it possible for unauthenticated attackers to enumerate non-public WooCommerce products (draft, future, pending) — including their count and rendered listing markup — and to force unbounded queries that load all products in a single request.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-11396 since 06/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/31/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• Woobewoo

Name

• Product Filter for WooCommerce by WBW Plugin

Version

• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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