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

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-6344
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 08:16:03 UTC
Updated2026-05-06 08:16:03 UTC
DescriptionThe 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.

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.9MEDIUMCVSS: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 Techjewel Fluent Forms Customizable Contact Forms Survey Quiz Conversational Form Builder affected 6.2.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/SubmissionHandler/Submis... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3513845/fluentform/trunk/app/Services/FormBuilder/N... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Hooks/Ajax.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/0101113b-70c2-4db4-b6b1-b2412... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notificatio... [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: Niv Kochan (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-15T10:58:00.000ZVendor Notified
CNA2026-05-05T17:53:19.000ZDisclosed
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report