# CVE-2026-11396: Product Filter for WooCommerce by WBW <= 3.4.6 - Missing Authorization to Unauthenticated Information Disclosure via filterSettings[default_query] Parameter

Status: published. Published: 2026-10-31. Updated: 2026-11-06.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- woobewoo / Product Filter for WooCommerce by WBW: ≥ 0; ≤ 3.4.6 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: Wordfence

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: 0.23% as of 2026-11-06; percentile 14.05%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f2b51837-5925-497f-bdb8-c32f9011830b?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-product-filter/trunk/modules/woofilters/controller.php#L864 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3757178%40woo-product-filter&new=3757178%40woo-product-filter (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/woo-product-filter/trunk/modules/woofilters/controller.php#L864 (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset?reponame=&old=3757178%40woo-product-filter&new=3757178%40woo-product-filter (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f2b51837-5925-497f-bdb8-c32f9011830b?source=cve (security@wordfence.com)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-11396; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11396; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-11396; retrieved 2026-11-06; source updated Not reported

Revision: f3cf59a9003a5f2d4f9603bdf751b6be62b3a09c6e6de49cb16df6701d01eee4

Canonical: https://y2.dev/cve/CVE-2026-11396

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.