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CVE-2026-14894— Super Forms <= 6.3.313 - Unauthenticated Arbitrary File Upload via 'data' Parameter (datauristring / value)

Quick assessment

Affected
WebRehab Super Forms – Drag & Drop Form Builder
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 Super Forms是WordPress基金会的一款CMS组件形式的表单构建插件。 WordPress Super Forms 6.3.313及之前版本存在任意文件上传漏洞，该漏洞源于submit_form功能缺少文件类型验证和权限检查，可能导致未经验证的攻击者通过两次未经身份验证的HTTP请求上传可执行文件，实现远程代码执行。

CVSS 9.8 · Critical EPSS 5.09% · P92

Public Exploits 1

Nuclei · 1 CVE-2026-14894.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
WebRehab Super Forms – Drag & Drop Form Builder ≤ 6.3.313 affected
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I. Basic Information for CVE-2026-14894

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Super Forms <= 6.3.313 - Unauthenticated Arbitrary File Upload via 'data' Parameter (datauristring / value)
Source: CVE Program / CVE List V5
Vulnerability Description
The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 6.3.313 via the submit_form function. This is due to missing file type validation and the absence of any capability check on the submit_form nopriv AJAX handler, whose only barrier is a session nonce freely obtainable by unauthenticated visitors via a separate nopriv endpoint. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. The nonce requirement is trivially bypassed because the super_create_nonce nopriv AJAX action allows any unauthenticated visitor to mint a valid sf_nonce and session cookie in a single prior request, reducing exploitation to two unauthenticated HTTP requests.
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 Super Forms 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Super Forms是WordPress基金会的一款CMS组件形式的表单构建插件。 WordPress Super Forms 6.3.313及之前版本存在任意文件上传漏洞，该漏洞源于submit_form功能缺少文件类型验证和权限检查，可能导致未经验证的攻击者通过两次未经身份验证的HTTP请求上传可执行文件，实现远程代码执行。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WebRehab Super Forms – Drag & Drop Form Builder 0 ~ 6.3.313 -

II. Public POCs for CVE-2026-14894

# POC Description Source Link Shenlong Link
1 Super Forms – Drag & Drop Form Builder WordPress plugin \u003C= 6.3.313 contains an arbitrary file upload vulnerability caused by missing file type validation and lack of capability checks in submit_form nopriv AJAX handler, letting unauthenticated attackers upload executable files and achieve remote code execution, exploit requires no authentication due to nonce bypass. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-14894.yaml POC Details
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Qwen3.6-35B-A3B · 9458 chars
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III. Intelligence Information for CVE-2026-14894

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Patches & Fixes for CVE-2026-14894 (1)

Vendor Advisories for CVE-2026-14894 (1)

IV. Related Vulnerabilities

Same product: Super Forms – Drag & Drop Form Builder
Same vendor: WebRehab
Same weakness: CWE-434

V. Comments for CVE-2026-14894

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