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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.

PUBLISHED Reserved 2026-03-02 | Published 2026-03-05 | Updated 2026-03-06 | Assigner Wordfence




HIGH: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-03-02:Vendor Notified
2026-03-05:Disclosed

Credits

Thomas Sanzey finder

References

www.wordfence.com/...-5c3c-48c3-a34a-6f9c25668258?source=cve

plugins.trac.wordpress.org/...1.3.9.5/inc/dnd-upload-cf7.php

plugins.trac.wordpress.org/...1.3.9.5/inc/dnd-upload-cf7.php

plugins.trac.wordpress.org/...ple-file-upload-contact-form-7

cve.org (CVE-2026-3459)

nvd.nist.gov (CVE-2026-3459)

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