CVE-2026-103358 WordPress Email Template Customizer for WooCommerce plugin <= 1.3.4 - Content Injection vulnerability

High 7.5 Published Updated

Attackers can inject malicious code into the Email Template Customizer for WooCommerce plugin, potentially leading to remote code execution on the WordPress site.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-103358?

CVE-2026-103358 is a high-severity code injection vulnerability in VillaTheme Email Template Customizer for WooCommerce, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Control of Generation of Code ('Code Injection') vulnerability in VillaTheme Email Template Customizer for WooCommerce email-template-customizer-for-woo allows Code Injection.This issue affects Email Template Customizer for WooCommerce: from n/a through 1.3.4.

Weakness: CWE-94

Which versions are affected by CVE-2026-103358?

How do I fix CVE-2026-103358?

No fix has been published for CVE-2026-103358 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-103358 being exploited?

There is no known exploitation of CVE-2026-103358 in the wild and no public exploit code.

Sources

Also known as GHSA-fqh3-49hp-8c6j.

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