CVE-2026-4244

Medium

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.

SeverityMedium
CVSS4.3
Exploit probability—
ProductPost Duplicator
PublishedAug 22, 2026
First seenAug 22, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
metaphorcreations Post Duplicatorv ≤ 3.0.11—

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