CVE-2026-3459HIGH 8.1EPSS p41.8%

CVE-2026-3459CVE-2026-3459

Description

The Drag and Drop Multiple File Upload - Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'dnd_upload_cf7_upload' function in versions up to, and including, 1.3.7.3. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if the form includes a multiple file upload field with ‘*’ as the accepted file type.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.55% probability of exploitation · percentile 41.8% · 2026-06-19T12:03:05Z
Published2026-03-05
Last modified2026-04-22

Underlying weaknesses· 1

CWE-434

References

  1. https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-contact-form-7/tags/1.3.9.5/inc/dnd-upload-cf7.php#L1146
  2. https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-contact-form-7/tags/1.3.9.5/inc/dnd-upload-cf7.php#L886
  3. https://plugins.trac.wordpress.org/changeset/3475121/drag-and-drop-multiple-file-upload-contact-form-7
  4. https://www.wordfence.com/threat-intel/vulnerabilities/id/3205670c-5c3c-48c3-a34a-6f9c25668258?source=cve

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.