CVE-2026-18351: CWE-434 Unrestricted Upload of File with Dangerous Type in addonsorg Drag and Drop File Upload for Elementor Forms
The Drag and Drop File Upload for Elementor Forms WordPress plugin up to version 1.6.0 contains an arbitrary file upload vulnerability due to insufficient file type validation. This flaw allows unauthenticated attackers to upload potentially executable files by bypassing MIME type checks, enabling remote code execution.
AI Analysis
Technical Summary
CVE-2026-18351 is a critical vulnerability in the Drag and Drop File Upload for Elementor Forms plugin for WordPress, affecting all versions up to and including 1.6.0. The vulnerability arises from improper validation in the is_file_type_valid() function, which uses an attacker-controlled 'type' parameter as regex keys in the MIME allowlist. This allows attackers to bypass blacklist restrictions by crafting file extensions that are normalized to PHP extensions by sanitize_file_name(), enabling arbitrary file upload and potential remote code execution without authentication.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files, including executable PHP scripts, leading to remote code execution. This compromises the affected WordPress site’s confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict or disable the vulnerable plugin and avoid exposing the file upload functionality to untrusted users.
CVE-2026-18351: CWE-434 Unrestricted Upload of File with Dangerous Type in addonsorg Drag and Drop File Upload for Elementor Forms
Description
The Drag and Drop File Upload for Elementor Forms WordPress plugin up to version 1.6.0 contains an arbitrary file upload vulnerability due to insufficient file type validation. This flaw allows unauthenticated attackers to upload potentially executable files by bypassing MIME type checks, enabling remote code execution.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18351 is a critical vulnerability in the Drag and Drop File Upload for Elementor Forms plugin for WordPress, affecting all versions up to and including 1.6.0. The vulnerability arises from improper validation in the is_file_type_valid() function, which uses an attacker-controlled 'type' parameter as regex keys in the MIME allowlist. This allows attackers to bypass blacklist restrictions by crafting file extensions that are normalized to PHP extensions by sanitize_file_name(), enabling arbitrary file upload and potential remote code execution without authentication.
Potential Impact
Successful exploitation allows unauthenticated attackers to upload arbitrary files, including executable PHP scripts, leading to remote code execution. This compromises the affected WordPress site’s confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict or disable the vulnerable plugin and avoid exposing the file upload functionality to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-30T06:01:04.246Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa209f3acd9273b49446591
Added to database: 09/10/2026, 01:37:55 UTC
Last enriched: 09/10/2026, 01:52:06 UTC
Last updated: 09/10/2026, 03:42:33 UTC
Views: 32
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