# 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.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Jan 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-42hr-36hh-j6c4

## 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 (Improper Neutralization of Input During Web Page Generation)

## 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.

## Is CVE-2025-13974 being exploited?

There is no known exploitation of CVE-2025-13974 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13974 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2025-13974 in the wild and no public exploit code.

Affected product: themehigh Email Customizer for WooCommerce | Drag and Drop Email Templates Builder. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-13974/ (Markdown: https://insights.sbomify.com/CVE-2025-13974/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13974
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13974
- OSV: https://osv.dev/vulnerability/CVE-2025-13974

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-13974/
Summaries are generated and may contain mistakes; the official description above is the record.