What is CVE-2020-26174?

CVE-2020-26174 is a high-severity vulnerability in Tangro Business Workflow, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-12-18.

How severe is CVE-2020-26174?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Tangro Business Workflow

CVE-2020-26174

tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the server and restricts uploads to the filetypes contained in this list. However, this restriction is enforced in the browser (client-side) and can be circumvented. This allows an attacker to upload any file as an attachment to a workitem.

Vulnerability class: Unrestricted File Upload

EPSS: 0.012 (66.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tangro Business_workflow
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

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

Frequently asked questions

What is CVE-2020-26174?: CVE-2020-26174 is a high-severity vulnerability in Tangro Business Workflow, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-12-18.
How severe is CVE-2020-26174?: High severity. CVSS v3 base score is 8.8 out of 10.