What is CVE-2020-26171?

CVE-2020-26171 is a medium-severity vulnerability in Tangro Business Workflow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2020-12-18.

How severe is CVE-2020-26171?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Tangro Business Workflow

CVE-2020-26171

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.006 (44.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Tangro Business_workflow
N/a — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

cve@mitre.org (Product, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-26171?: CVE-2020-26171 is a medium-severity vulnerability in Tangro Business Workflow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2020-12-18.
How severe is CVE-2020-26171?: Medium severity. CVSS v3 base score is 4.3 out of 10.