CVE-2025-13974 Cross-site scripting in Email Customizer for WooCommerce | Drag and Drop Email Templates Builder
Administrators can inject scripts into email templates that execute for customers, requiring multi-site or disabled unfiltered_html settings.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13974?
CVE-2025-13974 is a medium-severity cross-site scripting vulnerability in themehigh Email Customizer for WooCommerce | Drag and Drop Email Templates Builder, published on 7 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Email Customizer for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email template content in all versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in email templates that will execute when customers view transactional emails. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Weakness: CWE-79
Which versions are affected by CVE-2025-13974?
How do I fix CVE-2025-13974?
No fix has been published for CVE-2025-13974 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-2025-13974 being exploited?
There is no known exploitation of CVE-2025-13974 in the wild and no public exploit code.
Sources
Also known as GHSA-42hr-36hh-j6c4.