An account-enumeration issue was discovered in Zammad before 3.4.1. The Create User functionality is implemented in a way that would enable an anonymous user to guess valid user email addresses. The application responds differently depending on whether the input supplied was recognized as associated with a valid user.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zammad | Zammad | 1.0.0 (including) | 3.4.1 (excluding) |