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CVE-2026-53739

Yoast Duplicate Post through 4.6 Cross-Site Request Forgery via duplicate_post_dismiss_notice

Yoast Duplicate Post through 4.6 contains a cross-site request forgery vulnerability in the duplicate_post_dismiss_notice handler, which verifies no nonce or capability. Attackers can trick any authenticated user into sending a request that sets the duplicate_post_show_notice site option, suppressing admin notices network-wide.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Duplicate Post Project Wordpress Yoast
Products
Duplicate Post Wordpress Yoast Duplicate Post
CVE-2026-1217

Yoast Duplicate Post <= 4.5 - Authenticated (Contributor+) Missing Authorization to Arbitrary Post Duplication and Overwrite

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.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Wordpress Yoast
Products
Wordpress Yoast Duplicate Post