CVE-2026-94589 | 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 shel
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.
- 🔗 www.wordfence.com/threat-intel/vulnerabilities/id/fa3193c4-…
- 🔗 plugins.trac.wordpress.org/browser/extensions-for-cf7/tags/3.4.5/inc…
- 🔗 plugins.trac.wordpress.org/browser/extensions-for-cf7/tags/3.4.5/adm…
- 🔗 plugins.trac.wordpress.org/browser/extensions-for-cf7/tags/3.4.5/adm…
- 🔗 plugins.trac.wordpress.org/browser/extensions-for-cf7/tags/3.4.5/inc…
- 🔗 plugins.trac.wordpress.org/changeset
- 🔗 plugins.trac.wordpress.org/changeset/3727009/extensions-for-cf7/trun…
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CVE-2026-94589 | 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 shel
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 miss
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