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Medium severity · published Aug 22, 2026
CVE-2026-4244
Post Duplicator <= 3.0.11 - Missing Authorization to Authenticated (Contributor+) Post Duplication with Arbitrary Author Attribution
4.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PD
Post Duplicator · metaphorcreations
through 3.0.11 · source: vendor
Affected product
PD
Post Duplicator
metaphorcreations
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4244
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4244
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/browser/post-duplicator/trunk/includes/api.php#L728
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3485579/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/64553742-ff2b-40e9-92c3-3458a9f988a2?source=cve
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