Vulnerabilities / Duplicate Post / WPSEC-2026-2974
Duplicate Post <= 1.5.7 - Authenticated (Subscriber+) Missing Authorization to Original Post Slug Modification
Low 3.1
CWE-862Fixed in 1.5.8
- ID
- WPSEC-2026-2974
- Plugin
- Duplicate Post (copy-delete-posts)
- Affected
- from 1.5.1 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 modification of data in all versions from 1.5.1 up to, and including, 1.5.7. This is due to a missing edit_post capability check before the copy_post function renames the original post's slug when the 'take over original slug' option is enabled. This makes it possible for authenticated attackers, with subscriber-level access and above whose role has been granted access to the plugin, to change the slug of any post they can read and give the original URL to a copy.
References
- https://wpsec.com/vuln/WPSEC-2026-2974/
- 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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