TI-2026-81639 CVE-2026-84999 · GHSA-356m-cxhj-j59pUnrestricted file upload in Pie Register Premium WordPress pluginPriority MEDIUM 49The Pie Register Premium plugin for WordPress is vulnerable to Unrestricted File Type Upload in all versions up to, and including, 3.8.4.0 via the piereg_file_upload function.CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00483 · Published 2026-10-28 · No fix listed CWE-434