CSRF in Yoast Duplicate Post
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (3.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Yoast Duplicate Post — versions 0
Weakness classification (CWE)
References
- wordpress.org/plugins/duplicate-post/ (product)
- www.vulncheck.com/advisories/yoast-duplicate-post-through-cross-site-request-fo… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-53739?
- CVE-2026-53739 is a medium-severity vulnerability in Yoast Duplicate Post, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-06-10.
- How severe is CVE-2026-53739?
- Medium severity. CVSS v3 base score is 4.3 out of 10.