Description
An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/<DocumentID>/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.
References (2)
Core 2
Core References
Product x_refsource_misc
https://www.tangro.de/
Exploit, Third Party Advisory x_refsource_misc
https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/
Scores
CVSS v3
4.3
EPSS
0.0074
EPSS Percentile
49.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-922
Status
published
Products (1)
tangro/business_workflow
< 1.18.1
Published
Dec 18, 2020
Tracked Since
Feb 18, 2026