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 的 Elementor Forms 插件中的“拖放文件上传”功能存在任意文件上传漏洞，影响版本为 1.6.0 及更早的所有版本，漏洞存在于 函数中。 该漏洞的根源在于 函数中的文件类型验证不充分：它使用攻击者可控制的 “type” 参数作为 MIME 允许列表的正则表达式键，使得攻击者可以通过构造特定的文件扩展名来绕过黑名单。随后， 函数会将该扩展名规范化为 PHP 扩展名。 这使得未经身份验证的攻击者能够上传可能具有可执行性的文件，从而可能导致远程代码执行（RCE）。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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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
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
| # | POC Description | Source Link | Shenlong Link |
|---|
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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
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V. Comments for CVE-2026-18351
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