The server in Luca through 1.1.14 allows remote attackers to cause a denial of service (insertion of many fake records related to COVID-19) because Phone Number data lacks a digital signature.Referenceshttps://luca-app.de/securityoverview/processes/guest_registration.html#verifying-the-contact-datahttps://gitlab.com/lucaapp/web/-/issues/1#note_560963608
