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.
References5
- plugins.trac.wordpress.org/browser/post-duplicator/trunk/includ…
- plugins.trac.wordpress.org/browser/post-duplicator/trunk/includ…
- plugins.trac.wordpress.org/browser/post-duplicator/trunk/includ…
- plugins.trac.wordpress.org/changeset/3485579/
- www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b…
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 27 · as of 9 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.