CVE-2026-57621CRITICAL NVDCVSS Score 9.8Severity CRITICALPublished Jul 02, 2026Vendor unknownDescriptionUnauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.Referenceshttps://patchstack.com/database/wordpress/plugin/booktics/vulnerability/wordpress-booktics-plugin-1-0-21-php-object-injection-vulnerability?_s_id=cve