CVE-2026-53739 Yoast Duplicate Post through 4.6 Cross-Site Request Forgery via duplicate_post_dismiss_notice
Attackers can trick authenticated users into suppressing admin notices network-wide via a CSRF vulnerability in the Yoast Duplicate Post plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53739?
CVE-2026-53739 is a medium-severity vulnerability in Yoast Duplicate Post, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-352
Which versions are affected by CVE-2026-53739?
How do I fix CVE-2026-53739?
No fix has been published for CVE-2026-53739 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-53739 being exploited?
There is no known exploitation of CVE-2026-53739 in the wild and no public exploit code.
Sources
Also known as GHSA-8jhr-hxr5-g2rc.