An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document//attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them.
The product stores sensitive information without properly limiting read or write access by unauthorized actors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Business_workflow | Tangro | * | 1.18.1 (excluding) |