CVE-2026-7804 Product Filter for WooCommerce by WBW <= 3.4.2 - Reflected Cross-Site Scripting via 'wpf_fid' Parameter
Unauthenticated attackers can inject arbitrary scripts via the wpf_fid parameter, potentially executing code in victim browsers if they click a crafted link.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-7804?
CVE-2026-7804 is a medium-severity cross-site scripting vulnerability in woobewoo Product Filter for WooCommerce by WBW, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Product Filter for WooCommerce by WBW plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'wpf_fid' parameter in all versions up to, and including, 3.4.2 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. Exploitation requires the crafted request to target a page where a filter using the vulnerable recalculation output is present.
Weakness: CWE-79
Which versions are affected by CVE-2026-7804?
How do I fix CVE-2026-7804?
No fix has been published for CVE-2026-7804 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-7804 being exploited?
There is no known exploitation of CVE-2026-7804 in the wild and no public exploit code.
Sources
Also known as GHSA-4pxf-9mg2-jcm5.