ICU Scandinavia Boomerang is vulnerable to an information disclosure flaw where sensitive credential files are exposed via static HTTP. This allows an unauthenticated remote attacker to retrieve plaintext service account and SMTP credentials by requesting specific XML files from the webroot.
This issue has been fixed in version 2.4.18.029
Insufficiently Protected Credentials The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.