Reported vulnerability

Super Forms <= 6.3.313 - Unauthenticated Arbitrary File Upload via 'data' Parameter (datauristring / value)

Q: Which versions of Super Forms – Drag & Drop Form Builder are affected?

Wordfence lists these affected versions: Start version unspecified, through 6.3.313. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for Super Forms – Drag & Drop Form Builder?

Wordfence reports a fix for this issue in Super Forms – Drag & Drop Form Builder. It lists these fixed versions: 6.3.314. 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 9 Jul 2026

Updated 13 Jul 2026

CVE-2026-14894

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

critical · CVSS 9.8

The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 6.3.313 via the submit_form function. This is due to missing file type validation and the absence of any capability check on the submit_form nopriv AJAX handler, whose only barrier is a session nonce freely obtainable by unauthenticated visitors via a separate nopriv endpoint. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. The nonce requirement is trivially bypassed because the super_create_nonce nopriv AJAX action allows any unauthenticated visitor to mint a valid sf_nonce and session cookie in a single prior request, reducing exploitation to two unauthenticated HTTP requests.

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

Super Forms – Drag & Drop Form Builder

Software: plugin · super-forms
Affected versions: Start version unspecified, through 6.3.313
Fix availability: Fix available
Fixed versions: 6.3.314

Recommended action

Update to version 6.3.314, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/e9c7fb16-efbb-41e9-be13-98e96c1e9100?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 Super Forms – Drag & Drop Form Builder are affected?

Wordfence lists these affected versions: Start version unspecified, through 6.3.313. Use the version checker above to compare your installed release with this report.

Is a fix available for Super Forms – Drag & Drop Form Builder?

Wordfence reports a fix for this issue in Super Forms – Drag & Drop Form Builder. It lists these fixed versions: 6.3.314. 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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