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Vulnerabilities and Security Researches

Yoast Duplicate Post, CVE-2026-53740

CVE, Research URL

CVE-2026-53740

Application

Yoast Duplicate Post

Published on
Jun 11, 2026
Research Description
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 versions
max 4.6.
Status
vulnerable