# CVE-2026-3474: EmailKit <= 1.6.3 - Authenticated (Administrator+) Path Traversal via 'emailkit-editor-template' REST API Parameter

> Authenticated administrators can read arbitrary server files via path traversal in the EmailKit WordPress plugin REST API.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/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:** 20 Mar 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-3wf8-vwmj-p686

## What is CVE-2026-3474?

CVE-2026-3474 is a medium-severity path traversal vulnerability in roxnor EmailKit – Email Customizer for WooCommerce & WP, published on 20 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The EmailKit – Email Customizer for WooCommerce & WP plugin for WordPress is vulnerable to arbitrary file read via path traversal in all versions up to, and including, 1.6.3. This is due to the action() function in the TemplateData class passing user-supplied input from the 'emailkit-editor-template' REST API parameter directly to file_get_contents() without any path validation, sanitization, or restriction to an allowed directory. This makes it possible for authenticated attackers, with Administrator-level access, to read arbitrary files on the server (such as /etc/passwd or wp-config.php) by supplying a traversal path. The file contents are stored as post meta and can subsequently be retrieved via the fetch-data REST API endpoint. Notably, the CheckForm class in the same plugin implements proper path validation using realpath() and directory restriction, demonstrating that the developer was aware of the risk but failed to apply the same protections to the TemplateData endpoint.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-3474?


## How do I fix CVE-2026-3474?

No fix has been published for CVE-2026-3474 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3474 being exploited?

There is no known exploitation of CVE-2026-3474 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3474 and fix it if it is affected.

What it is: CVE-2026-3474 is a medium-severity path traversal vulnerability in roxnor EmailKit – Email Customizer for WooCommerce & WP, published on 20 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-3474 in the wild and no public exploit code.

Affected product: roxnor EmailKit – Email Customizer for WooCommerce & WP. 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-2026-3474/ (Markdown: https://insights.sbomify.com/CVE-2026-3474/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3474
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3474
- OSV: https://osv.dev/vulnerability/CVE-2026-3474

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3474/
Summaries are generated and may contain mistakes; the official description above is the record.