---
id: CVE-2026-88942
title: >-
  Product Filter for WooCommerce by WBW <= 3.4.6 - Reflected Cross-Site
  Scripting via 'wpf_fid' JSON Parameter
summary: >-
  The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable
  to Reflected Cross-Site Scripting via 'wpf_fid' JSON Parameter in all versions
  up to, and including, 3.4.6 due to insufficient input sanitization and output
  esc…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: woobewoo
product: Product Filter for WooCommerce by WBW
affected:
  - product_filter_for_woocommerce_by_wbw <= 3.4.6
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-01T17:34:37.219182Z'
published: '2026-10-31'
updated: '2026-11-01'
sourceUpdated: '2026-11-01T17:44:29.015Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-88942'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/93f80f84-68b1-4c11-8bc8-19b78e253129?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-response.php#L82
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-frame.php#L391
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-response.php#L82
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359
  - url: >-
      https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-frame.php#L391
  - url: 'https://github.com/wpcodefactory/woo-product-filter'
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3757178/woo-product-filter/trunk/classes/class-woobewoo-pf-response.php
tags:
  - cve.org
epss: 0.00271
epssPercentile: 0.19433
ingestedAt: '2026-11-05T19:30:42.598Z'
---

## Overview

The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'wpf_fid' JSON Parameter in all versions up to, and including, 3.4.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The vulnerability persists in versions that received the 3.4.3 patch because absint() was applied only to the getVar() read path, leaving the wpf_fid value read from the JSON-decoded filterSettings payload entirely unsanitized.

## Affected

- `product_filter_for_woocommerce_by_wbw <= 3.4.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.