CVE-2020-26171

4.3 mediumEPSS 0.6%

Medium (4.3) in tangro business workflow. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2020-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tangro:business_workflow

References

https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/
https://www.tangro.de/
https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/
https://www.tangro.de/

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