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CVE-2026-0740— Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload

Quick assessment

Affected
SaturdayDrive Ninja Forms - File Uploads
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Ninja Forms - File Uploads 3.3.26及之前版本存在代码问题漏洞，该漏洞源于NF_FU_AJAX_Controllers_Uploads::handle_upload函数缺少文件类型验证，

CVSS 9.8 · Critical EPSS 62.90% · P99

Public Exploits 2

ExploitDB · 1 EDB-52560 [webapps]
Nuclei · 1 CVE-2026-0740.yaml [template]
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I. Basic Information for CVE-2026-0740

Vulnerability Information
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Vulnerability Title
Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The Ninja Forms - File Uploads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'NF_FU_AJAX_Controllers_Uploads::handle_upload' function in all versions up to, and including, 3.3.26. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability was partially patched in version 3.3.25 and fully patched in version 3.3.27.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Ninja Forms - File Uploads 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Ninja Forms - File Uploads 3.3.26及之前版本存在代码问题漏洞，该漏洞源于NF_FU_AJAX_Controllers_Uploads::handle_upload函数缺少文件类型验证，
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
SaturdayDrive Ninja Forms - File Uploads 0 ~ 3.3.26 -

II. Public POCs for CVE-2026-0740

# POC Description Source Link Shenlong Link
1 Ninja Forms File Uploads plugin for WordPress versions up to and including 3.3.26 is vulnerable to unauthenticated arbitrary file upload which could lead to remote code execution. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-0740.yaml POC Details
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III. Intelligence Information for CVE-2026-0740

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Vendor Pages for CVE-2026-0740 (1)

IV. Related Vulnerabilities

Same product: Ninja Forms - File Uploads
Same vendor: SaturdayDrive
Same weakness: CWE-434

V. Comments for CVE-2026-0740

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