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9.1

Super Forms can let strangers delete any folder

CVE-2026-17609 · published 3 days ago
Summary

The Super Forms – Drag & Drop Form Builder plugin for WordPress lets anyone remove any directory on the server, even the WordPress root, if the option to delete files after submissions is turned on. This happens because the plugin does not properly check the data it receives. Turn off the “Delete files from server after form submissions” setting or update the plugin to a safe version.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
webrehab super forms – drag & drop form builder <= 6.3.316
Original advisory text
Super Forms <= 6.3.316 - Unauthenticated Arbitrary Directory Deletion via 'data[...][files][][subdir]' Parameter
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary Directory Deletion in all versions up to, and including, 6.3.316 via the submit_form function. This is due to insufficient validation of attacker-controlled JSON field declarations against the actual form schema, combined with a non-effective ABSPATH guard that dirname() trivially bypasses by stripping the trailing slash. This makes it possible for unauthenticated attackers to recursively delete arbitrary directories on the server, including the WordPress root directory. Exploitation requires that an administrator has enabled the 'Delete files from server after form submissions' setting, though this is a documented and commonly-enabled feature.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
9.1 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-434Unrestricted File Upload
Timeline
Published8 Oct 2026
Updated10 Oct 2026
First seen8 Oct 2026
Sources
CVE-2026-17609 · NVD
CVE-2026-17609 · OSV
CVE-2026-17609 · MITRE
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