CVE-2026-4244: CWE-862 Missing Authorization in metaphorcreations Post Duplicator
Description
The Post Duplicator WordPress plugin up to version 3.0.11 has a missing authorization vulnerability. The duplicate_post() function does not verify that the user has the 'edit_others_posts' capability before allowing duplication of posts with a specified author. This allows authenticated users with Contributor-level access or higher to create duplicated posts attributed to any user, including administrators.
CVSS v3.1
Score 4.3medium
Affected software
metaphorcreations
Post Duplicator
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-4244 describes a missing authorization vulnerability (CWE-862) in the Post Duplicator plugin for WordPress. The duplicate_post() function, accessible via the 'duplicate-post' REST endpoint, fails to check if the user has the 'edit_others_posts' capability before accepting the 'selectedAuthorId' parameter. This flaw affects all versions up to and including 3.0.11, enabling authenticated attackers with Contributor-level permissions or above to duplicate posts and assign them to arbitrary users, including administrators.
Potential Impact
The vulnerability allows authenticated users with Contributor-level access or higher to create duplicated posts attributed to any user, including administrators. This could lead to unauthorized content modification or impersonation within the WordPress site. There is no impact on confidentiality or availability reported, only integrity is affected with a low to medium severity impact.
Mitigation Recommendations
No official patch or fix is currently referenced in the provided data. Users should check the vendor's advisory for updates. Until a fix is available, restrict Contributor-level access or higher to trusted users only. Monitor for plugin updates that address this authorization flaw and apply them promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-15T21:44:09.826Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a899b98acd9273b490877ec
Added to database: 08/22/2026, 12:52:40 UTC
Last enriched: 09/11/2026, 02:03:32 UTC
Last updated: 10/06/2026, 18:48:22 UTC
Views: 34
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