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NVD CRITICAL: CVE-2026-94589 — The Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirect...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

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 Score: 9.8. Published: 2026-10-10T04:18:19.713.

Indicators of Compromise (1)

CVE (1)
CVE-2026-94589
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 10, 2026. Verified by: NIST.

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