KNIME Server before 4.12.6 and 4.13.x before 4.13.4 (when installed in unattended mode) keeps the administrator's password in a file without appropriate file access controls, allowing all local users to read its content.
KNIME Server before 4.13.4 allows XSS via the old WebPortal login page.
KNIME Server before 4.13.4 allows directory traversal in a request for a client profile.