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CVE-2026-0740 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 7, 2026

Ninja Forms - File Uploads - Unrestricted File Upload

Published: April 7, 2026Updated: April 7, 2026Remote Exploitable

Overview

Ninja Forms - File Uploads plugin for WordPress <= 3.3.26 contains an unrestricted file upload vulnerability caused by missing file type validation in NF_FU_AJAX_Controllers_Uploads::handle_upload, letting unauthenticated attackers upload arbitrary files, exploit requires no authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Unauthenticated attackers can upload arbitrary files, potentially leading to remote code execution and full server compromise.

Mitigation

Update to version 3.3.27 or later.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/0b606ded-ab50-486a-9337-97ee9f452f12?source=cve
https://ninjaforms.com/extensions/file-uploads/

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-0740
Severity: Critical
CVSS Score: 9.8
Type: unrestricted_file_upload
Status: new

CWE

CWE-434

CVSS Metrics

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