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TI-2020-16007 Aliases CVE-2020-26176GHSA-w664-p7q3-cm25

An issue was discovered in tangro Business Workflow before 1.18.1.

Priority LOW 21CWE-922Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-922.

Summary

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.

Why it matters now

EPSS 0.00754 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tangro:business_workflow:*:*:*:*:*:*:*:*before 1.18.1VulnerableTangro
  • cpe:2.3:a:tangro:business_workflow:*:*:*:*:*:*:*:* Versions before 1.18.1 Vulnerable ·Tangro

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26176
  2. 2026-10-03 Alias added: GHSA-w664-p7q3-cm25

References

Exploit 1

Other 1

  • TI-2020-16005 tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the… CVSS 3.1HIGH 8.8
  • TI-2020-16006 In tangro Business Workflow before 1.18.1, an attacker can manipulate the value of PERSON… CVSS 3.1MEDIUM 6.5
  • TI-2020-16003 Every login in tangro Business Workflow before 1.18.1 generates the same JWT token, which… CVSS 3.1MEDIUM 6.5
  • TI-2020-16009 In tangro Business Workflow before 1.18.1, knowing an attachment ID, it is possible to… CVSS 3.1MEDIUM 5.3
  • TI-2020-16008 In tangro Business Workflow before 1.18.1, a user's profile contains some items that are… CVSS 3.1MEDIUM 4.3
  • TI-2020-16004 An incorrect access control implementation in Tangro Business Workflow before 1.18.1… CVSS 3.1MEDIUM 4.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences