CVE-2020-26171: Tangro Business Workflow

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

In tangro Business Workflow before 1.18.1, the documentId of attachment uploads to /api/document/attachments/upload can be manipulated. By doing this, users can add attachments to workitems that do not belong to them.

Affected products

• Tangro Business Workflow: before 1.18.1 (fixed in 1.18.1)

Published 2020-12-18. Last modified 2026-06-17.