CVE-2026-53740: Yoast Duplicate Post

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Yoast Duplicate Post through 4.6 inserts an unescaped post title and permalink into the Classic Editor scheduled republish notice. Attackers can schedule a republish copy with a crafted title to execute script when an administrator views the resulting notice.

Affected products

• Yoast Yoast Duplicate Post: up to and including 4.6

Published 2026-06-10. Last modified 2026-07-23.