WordPress CVEs

Description

The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the `duplicate_post()` function in `includes/api.php` using `$wpdb->insert()` directly to the `wp_postmeta` table instead of WordPress's standard `add_post_meta()` function, which would call `is_protected_meta()` to prevent lower-privileged users from setting protected meta keys (those starting with `_`). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary protected post meta keys such as `_wp_page_template`, `_wp_attached_file`, and other sensitive meta keys on duplicated posts via the `customMetaData` JSON array parameter in the `/wp-json/post-duplicator/v1/duplicate-post` REST API endpoint.

Affected WordPress components

• Post Duplicator Plugin · post-duplicator
  Confirmed match Active
  Up to and including 3.0.8
  View on WordPress.org

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

• metaphorcreations Post Duplicator — Up to and including 3.0.8

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/post-duplicator/tags/3.0.6/includes/api.php#L843
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/post-duplicator/tags/3.0.6/includes/api.php#L923
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3463768%40post-duplicator%2Ftrunk&old=3459096%40post-duplicator%2Ftrunk&sfp_email=&sfph_mail=
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e5c86f72-934c-4f3b-ab2a-65df1490ca8a?source=cve
• nvd.nist.gov Official NVD record