CVE-2026-0740— Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
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)
Shenlong Deep Dive — AI Deep Analysis
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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 |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-434
- CVE-2021-47943
TextPattern CMS 4.8.7 Remote Code Execution via File Upload - CVE-2021-47937
e107 CMS 2.3.0 Authenticated Remote Code Execution via Theme - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-6692
Slider Revolution 7.0.0 - 7.0.10 - Authenticated (Subscriber - CVE-2026-41587
CI4MS: Unrestricted PHP File Upload via Theme Installation L
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