# CVE-2026-7804: WBW Product Filter for WooCommerce reflected XSS in wpf_fid parameter

Source: https://junglewise.ai/threats/cve-2026-7804-wbw-product-filter-for-woocommerce-reflected-xss-in-wpf-fid  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-7804 · Severity: medium · CVSS 6.1 · Published 2026-09-09

The Product Filter for WooCommerce by WBW is a WordPress plugin that allows customers to filter product listings on e-commerce sites. An unauthenticated attacker can inject malicious JavaScript into pages by crafting a specially designed link and tricking users into clicking it. Successful exploitation can steal customer session data, redirect users to phishing sites, or deface the store front.

Technologies: [WBW Product Filter for WooCommerce](https://junglewise.ai/threats/technologies/product-filter-for-woocommerce). Vendors: [WBW](https://junglewise.ai/threats/vendors/wbw).

## Quick answers

**Is CVE-2026-7804 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-7804 being exploited in the wild.

**How severe is CVE-2026-7804?** Medium severity, with a CVSS score of 6.1, published 9 September 2026.

**Which products and versions are affected?** WBW Product Filter for WooCommerce up to and including 3.4.2.

**Is there a fix for CVE-2026-7804?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-7804 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-7804?** Check whether you run WBW Product Filter for WooCommerce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is a reflected cross-site scripting (XSS) vulnerability in the WBW Product Filter for WooCommerce plugin. The vulnerability exists in the 'wpf_fid' parameter due to insufficient input sanitization and output escaping. An unauthenticated attacker can inject arbitrary JavaScript code that executes in the victim's browser when a user clicks on a malicious link, provided the page uses the vulnerable filter recalculation output. No authentication is required, and the attack vector is network-based via crafted URLs.

## Affected products

- WBW Product Filter for WooCommerce up to and including 3.4.2

## Timeline

- 2026-09-09: disclosed

## References

- [https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.3/classes/req.php](https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.3/classes/req.php)
- [https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.3/modules/woofilters/mod.php](https://plugins.trac.wordpress.org/browser/woo-product-filter/tags/3.1.3/modules/woofilters/mod.php)

## Related threats

- [WBW Product Filter for WooCommerce reflected XSS in text_no_products](https://junglewise.ai/threats/cve-2026-105150-the-product-filter-for-woocommerce-by-wbw-plugin-for-wordpress)
- [WooCommerce Product Filter by WBW missing authorization in AJAX handler](https://junglewise.ai/threats/cve-2026-11396-the-product-filter-for-woocommerce-by-wbw-plugin-for-wordpress-is)