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CVE-2023-6449

HIGH 7.2 CVSS 3.1
Published
December 1, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed in most cases. By default, the file will be deleted from the server immediately. However, in some cases, other plugins may make it possible for the file to live on the server longer. This can make remote code execution possible when combined with another vulnerability, such as local file inclusion.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • rocklobsterinc Contact Form 7 — Up to and including 5.8.3
  • rocklobster contact_form_7 — Before 5.8.4

References

  • contactform7.com https://contactform7.com/2023/11/30/contact-form-7-584/ Release Notes
  • github.com https://github.com/rocklobster-in/contact-form-7/compare/v5.8.3...v5.8.4 Patch
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contact-form-7/tags/5.8.3/includes/formatting.php#L275 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3003556/contact-form-7 Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5d7fb020-6acb-445e-a46b-bdb5aaf8f2b6?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record