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CVE-2026-17609

CRITICAL 9.1 CVSS 3.1
Published
October 8, 2026
Last modified
October 10, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Description

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.

Affected products and versions

  • WebRehab Super Forms – Drag & Drop Form Builder — Up to and including 6.3.316

References

  • github.com https://github.com/RensTillmann/super-forms/pull/205
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/f21577b4-b7c6-4b39-b2b7-66a75c5f56fb?source=cve
  • nvd.nist.gov Official NVD record