Duplicate Post <= 1.5.7 - Authenticated (Subscriber+) Missing Authorization to Post Publishing via Post Duplication
- ID
- WPSEC-2026-2976
- Plugin
- Duplicate Post (copy-delete-posts)
- Affected
- all versions before 1.5.8
- Remediation
- Update to 1.5.8 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-862
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-12
- Attack surface
- Duplicate Post on WPSec AttackSurface
- Fix released
- Published
Description
The Duplicate Post plugin for WordPress is vulnerable to unauthorized post publishing in all versions up to, and including, 1.5.7. This is due to the copy_post function of the cdp_action_handling AJAX action giving copies the original post's status and author, based on settings sent in the request, without checking the current user's publish_posts and edit_others_posts capabilities. This makes it possible for authenticated attackers, with subscriber-level access and above whose role has been granted access to the plugin, to create published copies of posts they can read, with a title prefix and suffix they choose, and attribute those copies to other users.
References
- https://wpsec.com/vuln/WPSEC-2026-2976/
- https://plugins.svn.wordpress.org/copy-delete-posts/tags/1.5.8/
- https://wordpress.org/plugins/copy-delete-posts/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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