EmailKit <= 1.6.3 - Authenticated (Administrator+) Path Traversal via 'emailkit-editor-template' REST API Parameter
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3474
- 2026-10-03 Alias added: GHSA-3wf8-vwmj-p686
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d8c11ebc-5c83-46a2-a8dd-b838cd50ddc6?source=cve
- https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php#L49
- https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php#L49
- https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php#L48
- https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php#L48
- https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php#L50
- https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php#L50
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3484455%40emailkit&new=3484455%40emailkit&sfp_email=&sfph_mail=
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Sources
- CVE-2026-3474 · CVE Program
- CVE-2026-3474 · NVD
- FIRST EPSS
- GHSA-3wf8-vwmj-p686 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences