Unauthorized Data Modification in Post Duplicator Plugin for WordPress
CVE-2026-4244

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Post Duplicator
Vendor
CVE Published:
22 August 2026

What is CVE-2026-4244?

The Post Duplicator plugin for WordPress contains a security flaw that allows authenticated users, including those with Contributor-level access, to duplicate posts associated with any user, without verifying their permissions. This occurs due to the lack of capability validation in the 'duplicate_post()' function when processing requests through the 'duplicate-post' REST endpoint. Consequently, this vulnerability poses a risk of unauthorized data manipulation, enabling potential abuse by attackers.

Affected Version(s)

Post Duplicator 0 <= 3.0.11

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/post-duplicato...
https://plugins.trac.wordpress.org/browser/post-duplicato...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abi Wiranata
.