CVE-2026-6344Fluent Forms <= 6.2.1 - Authenticated (Administrator+) Arbitrary File Read via Path Traversal in Email Attachment
- 4.9MediumCVSS base score
- 0.55%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Wordfence
- 21 days later
· 21 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.55% · top 53% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Affected products
References
References10
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0101113b-70c2-4db4-b6b1-b2412f6e1214?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L121 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L130 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L133 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L135 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L137 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php#L151 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Hooks/Ajax.php#L17 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Modules/SubmissionHandler/SubmissionHandler.php#L17 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3513845/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotificationActions.php (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-27536 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-6344)Record last updated .