When Secure::DisableBanner system configuration has been disabled and agent shares his calendar via public URL, received ICS file contains OTRS release number.
Otrs
CVE-2022-0474
Full list of recipients from customer users in a contact field could be disclosed in notification emails event when the notification is set to be sent to each recipient individually. This issue affects: OTRS AG OTRSCustomContactFields 8.0.x version: 8.0.11 and prior versions.