WordPress security changelog
MEDIUM CVE-2026-78172 Deferred

Themify – WooCommerce Product Filter: Cross-site scripting

Themify – WooCommerce Product Filter is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 1.5.5.

CVE / CNA score 6.1 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Themify – WooCommerce Product Filter
Plugin slug
themify-wc-product-filter
Affected
<= 1.5.5
Safe version
See mitigation notes
Published
Sep 11, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Sep 11, 2026 and is one of 2 known issues for this plugin.

Update, patch or deactivate.

No fixed release is identified. Update Themify – WooCommerce Product Filter when a release after 1.5.5 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 1.5.7, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Themify – WooCommerce Product Filter plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via Query Parameter Name in all versions up to, and including, 1.5.5 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary and upstream sources