Reported vulnerability

Super Forms <= 6.3.316 - Authenticated (Subscriber+) Arbitrary File Upload via 'extensions' Form Element Attribute

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

Wordfence lists these affected versions: Start version unspecified, through 6.3.316. 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: 6.3.317. 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 7 Oct 2026

Updated 8 Oct 2026

CVE-2026-17196

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

high · CVSS 8.8

The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Unrestricted File Type Upload in all versions up to, and including, 6.3.316 via the upload_files function. This is due to missing file type validation in the upload_files function, which reads and applies an attacker-controlled extensions string from _super_elements post meta verbatim as the allowed MIME type map. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. The attack requires a preceding step: poisoning the _super_elements post meta via the super_save_form AJAX handler, which lacks a capability and nonce check but requires the attacker to be authenticated as at minimum a Subscriber-level user; the subsequent file upload via super_upload_files requires no authentication at all.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:L/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 6.3.316
Fix availability: Fix available
Fixed versions: 6.3.317

Recommended action

Update to version 6.3.317, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/63db136b-58da-4758-a506-4dc79b3c177d?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 6.3.316. 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: 6.3.317. 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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