CVE-2026-78172 Themify – WooCommerce Product Filter <= 1.5.5 - Reflected Cross-Site Scripting
Unauthenticated attackers can inject arbitrary web scripts via query parameters, potentially executing code in victim browsers if they click a malicious 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-2026-78172?
CVE-2026-78172 is a medium-severity cross-site scripting vulnerability in themifyme Themify – WooCommerce Product Filter, published on 11 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 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-78172?
How do I fix CVE-2026-78172?
No fix has been published for CVE-2026-78172 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-2026-78172 being exploited?
There is no known exploitation of CVE-2026-78172 in the wild and no public exploit code.
Sources
Also known as GHSA-49fh-qp6h-2hx5.