CVE-2026-18351 Details
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.
A vulnerability allowing arbitrary file upload has been identified in the Drag and Drop File Upload for Elementor Forms WordPress plugin, in versions through 1.6.0. The issue arises in the elementor_file_upload function, where the is_file_type_valid() function fails to properly validate file types. This flaw allows attackers to craft file extensions that bypass the MIME allowlist, enabling the upload of executable files. As a result, unauthenticated attackers could potentially upload files that lead to remote code execution.
Users are advised to update the Drag and Drop File Upload for Elementor Forms WordPress plugin to version 1.6.1 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 10, 2026CISA-ADP
Assessed Sep 10, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| add-ons.org Drag and Drop File Upload for Elementor Forms | <= 1.6.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 10, 2026 | CVE Modified | CISA-ADP |
| Sep 10, 2026 | New CVE Received | [email protected] |
Volerion