Yoast Duplicate Post through 4.6 Cross-Site Request Forgery via duplicate_post_dismiss_notice
CVE-2026-53739

5.1MEDIUM

Key Information:

Vendor

Yoast

Status
Yoast Duplicate Post
Vendor
CVE Published:
10 June 2026

What is CVE-2026-53739?

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.

Affected Version(s)

Yoast Duplicate Post 0 <= 4.6

References

https://wordpress.org/plugins/duplicate-post/
product
https://www.vulncheck.com/advisories/yoast-duplicate-post...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Scott Moore - VulnCheck
.