Reported vulnerability

Fluent Forms <= 6.2.1 - Authenticated (Administrator+) Arbitrary File Read via Path Traversal in Email Attachment

Q: Which versions of Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder are affected?

Wordfence lists these affected versions: Start version unspecified, through 6.2.1. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder?

Wordfence reports a fix for this issue in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder. It lists these fixed versions: 6.2.2. Back up your website and test the recommended update before applying it to your live site.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 5 May 2026

Updated 6 May 2026

CVE-2026-6344

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

medium · CVSS 4.9

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 /../../ 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.

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

Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder

Software: plugin · fluentform
Affected versions: Start version unspecified, through 6.2.1
Fix availability: Fix available
Fixed versions: 6.2.2

Recommended action

Update to version 6.2.2, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/0101113b-70c2-4db4-b6b1-b2412f6e1214?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder are affected?

Wordfence lists these affected versions: Start version unspecified, through 6.2.1. Use the version checker above to compare your installed release with this report.

Is a fix available for Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder?

Wordfence reports a fix for this issue in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder. It lists these fixed versions: 6.2.2. Back up your website and test the recommended update before applying it to your live site.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

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