CVE-2026-5957 EmailKit <= 1.6.5 - Authenticated (Author+) Arbitrary File Read via 'emailkit-editor-template' REST Parameter
Authenticated attackers with Author-level access can read arbitrary files, including wp-config.php, via a path traversal flaw in the EmailKit WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5957?
CVE-2026-5957 is a medium-severity path traversal vulnerability in roxnor EmailKit – Email Customizer for WooCommerce & WP, published on 5 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The EmailKit plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to and including 1.6.5. This is due to a flawed path traversal validation in the create_template() method of the CheckForm class, where realpath() is called on the allowed base directory (wp-content/uploads/emailkit/templates/) which may not exist, causing it to return false. In PHP 8.x, strpos($real_path, false) implicitly converts false to an empty string, and strpos() with an empty needle always returns 0, causing the check strpos(...) !== 0 to evaluate to false and bypassing the path validation entirely. This makes it possible for authenticated attackers, with Author-level access and above, to read arbitrary files from the server, including sensitive files such as wp-config.php, by supplying an absolute path to the emailkit-editor-template REST API parameter.
Weakness: CWE-22
Which versions are affected by CVE-2026-5957?
How do I fix CVE-2026-5957?
No fix has been published for CVE-2026-5957 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-2026-5957 being exploited?
There is no known exploitation of CVE-2026-5957 in the wild and no public exploit code.
Sources
Also known as GHSA-28j2-6q62-7r48.