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.
- 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-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
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.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-3474 being exploited?
There is no known exploitation of CVE-2026-3474 in the wild and no public exploit code.
Sources
Also known as GHSA-3wf8-vwmj-p686.