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CVE-2026-53739

Medium

Description

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.

SeverityMedium
CVSS4.3
Exploit probability—
ProductYoast Duplicate Post
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Yoast Yoast Duplicate Postv ≤ 4.6—

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