CVE-2026-88942

Description

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/93f80f84-68b1-4c11-8bc8-19b78e253129?source=cve

https://plugins.trac.wordpress.org/changeset/3757178/woo-product-filter/trunk/classes/class-woobewoo-pf-response.php

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-response.php#L82

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.4/classes/class-woobewoo-pf-frame.php#L391

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L739

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L513

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L363

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/modules/woofilters/class-woobewoo-pf-woofilters-controller.php#L359

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-response.php#L82

https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.4.3/classes/class-woobewoo-pf-frame.php#L391

https://github.com/wpcodefactory/woo-product-filter

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114606

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS