CVE-2026-4244Post Duplicator <= 3.0.11 - Missing Authorization to Authenticated (Contributor+) Post Duplication with Arbitrary Author Attribution
Updated under an hour ago ()
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It affects metaphorcreations Post Duplicator. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Aug 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
metaphorcreations Post Duplicator metaphorcreations:post_duplicator (from the name) | through 3.0.11 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve
- https://plugins.trac.wordpress.org/browser/post-duplicator/trunk/includes/api.php#L728
- 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/changeset/3485579/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.