CVE-2026-18351criticalCWE-434

CVE-2026-18351: critical vulnerability in addonsorg Drag and Drop File Upload for…

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

Published

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.8epss 1.1%
from disclosure to weapon1 days
Published on NVDSep 10
1st PoC+1d
exploitation probability
1.1%top 34% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
addonsorg · Drag and Drop File Upload for Elementor Forms
public PoCs found — 2
githubgithub.com/JohenLastGen-JLG/CVE-2026-18351★ 1githubgithub.com/ChiefYoru/Exploit-CVE-2026-18351★ 0
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://plugins.svn.wordpress.org/drag-and-drop-file-upload-for-elementor-forms/tags/1.6.0/drag-and-drop-file-upload-for-elementor-forms.phphttps://plugins.svn.wordpress.org/drag-and-drop-file-upload-for-elementor-forms/tags/1.6.0/fields/file_upload.phphttps://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-elementor-forms/tags/1.6.0/fields/file_upload.php#L833https://plugins.trac.wordpress.org/changeset/3628051/drag-and-drop-file-upload-for-elementor-formshttps://www.wordfence.com/threat-intel/vulnerabilities/id/03e853be-510f-4957-a227-17ca9f825b12?source=cve