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CVE-2026-6344 Detail

Description

The Fluent Forms plugin for WordPress is vulnerable to Arbitrary File Read in versions up to and including 6.2.1. This is due to insufficient path validation in the getAttachments() method of EmailNotificationActions, which resolves attacker-supplied file-upload URLs into filesystem paths without verifying that the resolved path stays inside the WordPress uploads directory: a strpos() prefix check on the raw URL can be bypassed with traversal sequences, wp_normalize_path() does not resolve ".\..\" segments, and file_exists() then resolves them at the kernel level. This makes it possible for authenticated attackers with administrator access to read arbitrary files readable by the web-server user — including wp-config.php with its database credentials and authentication salts — by submitting a form whose admin notification is configured to attach a file-upload field and supplying a crafted URL of the shape <upload_baseurl>/../../<target> as the file-field value. The resolved file is attached to the outbound admin-notification email via wp_mail(). While the email can be triggered by unauthenticated users, the email recipient is not user-controlled.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Hooks/Ajax.php#L17 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/SubmissionHandler/SubmissionHandler.php#L17 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L121 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L130 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L133 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L135 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L137 Wordfence
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L151 Wordfence
https://plugins.trac.wordpress.org/changeset/3513845/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/0101113b-70c2-4db4-b6b1-b2412f6e1214?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-6344
NVD Published Date:
05/06/2026
NVD Last Modified:
05/06/2026
Source:
Wordfence