Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/mw-wp-form/tags/5.1.0/classes/control
- https://plugins.trac.wordpress.org/browser/mw-wp-form/tags/5.1.0/classes/models/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/194ee4a0-87c3-42e5-967
FAQ
What is CVE-2026-4347?
CVE-2026-4347 is a vulnerability with a CVSS score of 8.1 (HIGH). 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' fun...
How severe is CVE-2026-4347?
CVE-2026-4347 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4347?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.