Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18

Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.13 Vaadin 10.0.0 through 10.0.16, 1.1.0 prior to 2.0.0 Vaadin 11 prior to 14, 2.0.0 through 2.4.6 Vaadin 14.0.0 through 14.4.6, 3.0.0 prior to 5.0.0 Vaadin 15 prior to 18, and...

Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11

Missing check in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.5 Vaadin 10.0.0 through 10.0.7, and Vaadin 11.0.0 through 11.0.2 allows attacker to update element property values via crafted synchronization message. See CWE-754: Improper Check for Unusual or Exceptional...