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

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. 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

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