Arbitrary file upload in Drag and Drop File Upload for Contact Form 7 - CVE-2026-5364
Published: April 27, 2026
Vulnerability identifier: #VU128151
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-5364
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: add-ons.org
Affected software:
Drag and Drop File Upload for Contact Form 7
Drag and Drop File Upload for Contact Form 7
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within sanitize_file_name. A remote attacker can upload a malicious file and execute it on the server.
How to mitigate CVE-2026-5364
Install updates from vendor's website.