CVE-2026-53739

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

State: Published
Severity: 5.1 Medium
Published: Jun 10, 2026
Updated: Jun 11, 2026
Reserved: Jun 10, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-352 Cross-Site Request Forgery (CSRF)

Affected Products

Product	Versions
Yoast Duplicate PostYoast	4.6 and earlierAffected

References

WordPress Plugin Repositoryproduct
VulnCheck Advisory: Yoast Duplicate Post through 4.6 Cross-Site Request Forgery via duplicate_post_dismiss_noticethird-party-advisory

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