CVE-2026-5957 (GCVE-0-2026-5957)
Vulnerability from cvelistv5 – Published: 2026-05-05 03:37 – Updated: 2026-05-05 03:37
VLAI?
Title
EmailKit <= 1.6.5 - Authenticated (Author+) Arbitrary File Read via 'emailkit-editor-template' REST Parameter
Summary
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.
Severity ?
6.5 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| roxnor | EmailKit – Email Customizer for WooCommerce & WP |
Affected:
0 , ≤ 1.6.5
(semver)
|
Credits
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"product": "EmailKit \u2013 Email Customizer for WooCommerce \u0026 WP",
"vendor": "roxnor",
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}
],
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},
{
"url": "https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L166"
},
{
"url": "https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L170"
},
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"url": "https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/EmailSettings/MetformEmailSettings.php#L252"
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"url": "https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L170"
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"url": "https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L163"
},
{
"url": "https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L163"
},
{
"url": "https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L166"
},
{
"url": "https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/EmailSettings/MetformEmailSettings.php#L252"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3511701%40emailkit%2Ftrunk\u0026old=3496714%40emailkit%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
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"time": "2026-04-09T09:20:21.000Z",
"value": "Vendor Notified"
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{
"lang": "en",
"time": "2026-05-04T14:47:21.000Z",
"value": "Disclosed"
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],
"title": "EmailKit \u003c= 1.6.5 - Authenticated (Author+) Arbitrary File Read via \u0027emailkit-editor-template\u0027 REST Parameter"
}
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"dateReserved": "2026-04-09T09:01:29.056Z",
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"percentile": "0.19543"
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"nvd": "{\"cve\":{\"id\":\"CVE-2026-5957\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-05-05T04:16:19.643\",\"lastModified\":\"2026-05-05T19:08:20.090\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L163\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L166\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/Api/CheckForm.php#L170\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/tags/1.6.5/includes/Admin/EmailSettings/MetformEmailSettings.php#L252\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L163\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L166\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/Api/CheckForm.php#L170\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/emailkit/trunk/includes/Admin/EmailSettings/MetformEmailSettings.php#L252\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3511701%40emailkit%2Ftrunk\u0026old=3496714%40emailkit%2Ftrunk\u0026sfp_email=\u0026sfph_mail=\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/ae58e5b0-b587-4503-8519-c5a50245891a?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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