CVE-2026-4244
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L520
- https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L550
- https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L728
- https://plugins.trac.wordpress.org/changeset/3485579/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve
CWEs
CWE-862
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.