Home/CVE/tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the server and restricts uploads to the
CVE

CVE-2020-26174

tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the server and restricts uploads to the

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.

HIGH · CVSS 8.8 EPSS 0.00423
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

1
tangro business workflow< 1.18.1
⚠

Public Exploits & PoCs

1
pocblog.to.com · advisory-tangro-bwf-1-17-5-multiple-vulnerabilitiesblog.to.com
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Dec 2020 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.tangro.de/Product
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