CVE-2026-94589

Received

Published: 10 Oct 2026, 03:26

Last modified:10 Oct 2026, 03:26

Vulnerability Summary

Overall Risk (default)

high

70/100

CVSS Score

9.8 CRITICAL

v3.1 (cve.org)

EPSS Score

No data

KEV

Not listed

Ransomware

No reports

Public exploits

None found

Dark Web

Not detected

Timeline

10 Oct 2026, 03:26

Published

Vulnerability first disclosed

Description

The Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirection) plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.4.5 via the extcf7_submit function. This is due to missing file extension, MIME type, and size validation in the signature field's validation_filter(), combined with the absence of PHP-execution guards in the upload directory and a sanitize_file_name() bypass that converts shell.php- into shell.php. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.

CVSS Metrics

v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Techniques & Countermeasures

CWE-434•Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Affected Systems

htplugins•extensions for cf7 (contact form 7 database, conditional fields and redirection)
≤ 3.4.5