CVE-2026-4244
Post Duplicator <= 3.0.11 - Missing Authorization to Authenticated (Contributor+) Post Duplication with Arbitrary Author Attribution
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | metaphorcreations |
| Product | post duplicator |
| Published | Aug 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
metaphorcreations / Post Duplicator
0 ≤ 3.0.11
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve 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/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/changeset/3485579/
Credits
Abi Wiranata