CVE-2020-26174

HIGH

Tangro Business Workflow < 1.18.1 - Unrestricted File Upload

Title source: rule
STIX 2.1

Description

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.

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 8.8
EPSS 0.0042
EPSS Percentile 62.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
tangro/business_workflow < 1.18.1
Published Dec 18, 2020
Tracked Since Feb 18, 2026