CVE-2026-4244

Post Duplicator <= 3.0.11 - Missing Authorization to Authenticated (Contributor+) Post Duplication with Arbitrary Author Attribution

Published Aug 22, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Metaphorcreations
Metaphorcreations post Duplicator
Wordpress
Wordpress wordpress
Vendors & Products Metaphorcreations
Metaphorcreations post Duplicator
Wordpress
Wordpress wordpress
Type Values Removed Values Added
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.
Title Post Duplicator <= 3.0.11 - Missing Authorization to Authenticated (Contributor+) Post Duplication with Arbitrary Author Attribution
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Aug 24, 2026, 1:01 PM
Reserved
Mar 15, 2026, 9:44 PM
Status
Deferred
Published
Aug 22, 2026, 1:16 PM
Modified
Oct 12, 2026, 4:10 PM