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

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Summary

CVECVE-2026-3474
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-21 00:16:28 UTC
Updated2026-04-22 21:32:08 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.000740000 probability, percentile 0.224380000 (date 2026-04-22)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Roxnor EmailKit Email Customizer For WooCommerce WP affected 1.6.3 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d8c11ebc-5c83-46a2-a8dd-b838c... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/emailkit/tags/1.6.2/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/TemplateData.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Chiao-Lin Yu (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-03T13:17:24.000ZVendor Notified
CNA2026-03-20T11:00:41.000ZDisclosed
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