GHSA-RP4X-WXQV-CF9M Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13

Missing output sanitization in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.10 Vaadin 10.0.0 through 10.0.13, and 1.1.0 through 1.4.2 Vaadin 11.0.0 through 13.0.5 allows attacker to execute malicious JavaScript via crafted URL. -...