CVE-2020-26176 — MEDIUM (4.3)

Vulnerability 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.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Tangro	Business Workflow	< 1.18.1

Related Weaknesses (CWE)

CWE-922

References

https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/ExploitThird Party Advisory
https://www.tangro.de/Product
https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/ExploitThird Party Advisory
https://www.tangro.de/Product

FAQ

What is CVE-2020-26176?

CVE-2020-26176 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 atta...

How severe is CVE-2020-26176?

CVE-2020-26176 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-26176?

Check the references section above for vendor advisories and patch information. Affected products include: Tangro Business Workflow.