CVE-2026-1217
Yoast Duplicate Post <= 4.5 - Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
The Yoast Duplicate Post plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the clone_bulk_action_handler() and republish_request() functions in all versions up to, and including, 4.5. This makes it possible for authenticated attackers, with Contributor-level access and above, to duplicate any post on the site including private, draft, and trashed posts they shouldn't have access to. Additionally, attackers with Author-level access and above can use the Rewrite & Republish feature to overwrite any published post with their own content.
| CWE | CWE-862 |
| Vendor | yoast |
| Product | yoast duplicate post |
| Published | Mar 18, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
yoast / Yoast Duplicate Post
0 ≤ 4.5
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/05f175e6-08a9-4199-948c-5bd8b3caaa39?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/handlers/bulk-handler.php#L115 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/duplicate-post/tags/4.5/src/post-republisher.php#L128
Credits
JohSka