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CVE-2026-18351— Drag and Drop File Upload for Elementor Forms <= 1.6.0 - Unauthenticated Arbitrary File Upload via 'type' Parameter

Quick assessment

Affected
addonsorg Drag and Drop File Upload for Elementor 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 Drag and Drop File Upload for Elementor Forms是WordPress基金会的一款支持表单文件拖拽上传的插件。 WordPress Drag and Drop File Upload for Elementor Forms 1.6.0及之前版本存在任意文件上传漏洞，该漏洞源于is_file_type_valid()函数文件类型验证不足，将攻击者可控的type参数用作MIME允许列表的正则表达式键，可通过特制扩展名绕过黑名单并被sanitize_f

CVSS 9.8 · Critical EPSS 1.13% · P66

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
addonsorg Drag and Drop File Upload for Elementor Forms ≤ 1.6.0 affected
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I. Basic Information for CVE-2026-18351

Vulnerability Information
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Vulnerability Title
Drag and Drop File Upload for Elementor Forms <= 1.6.0 - Unauthenticated Arbitrary File Upload via 'type' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Drag and Drop File Upload for Elementor Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.6.0 via the elementor_file_upload function. This is due to insufficient file type validation in the is_file_type_valid() function, which uses the attacker-controlled 'type' parameter as regex keys in the MIME allowlist, allowing blacklist bypass via a crafted extension that sanitize_file_name() later normalizes to a PHP extension. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.
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 Drag and Drop File Upload for Elementor Forms 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Drag and Drop File Upload for Elementor Forms是WordPress基金会的一款支持表单文件拖拽上传的插件。 WordPress Drag and Drop File Upload for Elementor Forms 1.6.0及之前版本存在任意文件上传漏洞，该漏洞源于is_file_type_valid()函数文件类型验证不足，将攻击者可控的type参数用作MIME允许列表的正则表达式键，可通过特制扩展名绕过黑名单并被sanitize_f
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
addonsorg Drag and Drop File Upload for Elementor Forms 0 ~ 1.6.0 -

II. Public POCs for CVE-2026-18351

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III. Intelligence Information for CVE-2026-18351

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Vendor Advisories for CVE-2026-18351 (1)

Vendor Pages for CVE-2026-18351 (1)

Other References for CVE-2026-18351 (2)

IV. Related Vulnerabilities

Same product: Drag and Drop File Upload for Elementor Forms
Same vendor: addonsorg
Same weakness: CWE-434