CVE-2026-14494— Sigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload Field
Quick assessment
Affected
bdthemes SigmaForms Pro – AI Generated Forms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WordPress 的 Sigma Forms Pro 插件在所有版本中（包括 1.4.5 及更早版本）存在远程代码执行（RCE）漏洞，该漏洞通过 函数触发。其根本原因是插件在处理表单提交时，动态地赋予所有用户 权限，并且在未配置 时，会绕过 MIME 类型验证。这使得未经身份验证的攻击者能够在服务器上执行代码。多个默认预置模板（如 Job Application、Support Ticket 和 Wholesale Application）中的文件上传字段在设计上未配置任何文件类型限制，因此该漏洞在安装后即可立即
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-14494
Vulnerability Information
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Vulnerability Title
Sigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload Field
Source: CVE Program / CVE List V5
Vulnerability Description
The Sigma Forms Pro plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.4.5 via the handle_form_submission function. This is due to the plugin dynamically granting the unfiltered_upload capability to all users during form submissions and bypassing MIME type validation when allowed_file_types is not configured. This makes it possible for unauthenticated attackers to execute code on the server. Several default pre-built templates including Job Application, Support Ticket, and Wholesale Application have file upload fields with no file type restrictions configured by design, making this vulnerability immediately exploitable upon installation.
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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| bdthemes | SigmaForms Pro – AI Generated Forms | 0 ~ 1.4.5 | - |
|
II. Public POCs for CVE-2026-14494
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-14494 (1)
Vendor Pages for CVE-2026-14494 (1)
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