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Description

The MW WP Form plugin for WordPress is vulnerable to arbitrary file moving due to insufficient file path validation via the 'generate_user_filepath' function and the 'move_temp_file_to_upload_dir' function in all versions up to, and including, 5.1.0. This makes it possible for unauthenticated attackers to move arbitrary files on the server, which can easily lead to remote code execution when the right file is moved (such as wp-config.php). The vulnerability is only exploitable if a file upload field is added to the form and the “Saving inquiry data in database” option is enabled.

PUBLISHED Reserved 2026-03-17 | Published 2026-04-02 | Updated 2026-04-08 | 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-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-03-26:Vendor Notified
2026-04-01:Disclosed

Credits

ISMAILSHADOW finder

References

www.wordfence.com/...-87c3-42e5-9676-8dd355838b78?source=cve

plugins.trac.wordpress.org/...ses/controllers/class.main.php

plugins.trac.wordpress.org/...ses/models/class.directory.php

cve.org (CVE-2026-4347)

nvd.nist.gov (CVE-2026-4347)

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