CVE-2026-4244
MEDIUM
4.3
CVSS 3.1
Description
The Post Duplicator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `duplicate_post()` function in all versions up to, and including, 3.0.11. This is due to the function not verifying that the user has `edit_others_posts` capability before accepting a `selectedAuthorId` parameter via the `duplicate-post` REST endpoint. This makes it possible for authenticated attackers, with Contributor-level access and above, to create duplicated posts attributed to any user, including administrators.
Affected WordPress components
-
Post Duplicator Plugin · post-duplicatorUp to and including 3.0.11View 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 3.0.11
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L520
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L550
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L728
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3485579/
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve
- nvd.nist.gov Official NVD record