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01 Record

CVE-2020-26171

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

MediumPUBLISHEDCNA: mitre
CNA base score4.3 CVSS v3.xCVSS:3.1/AC:L/AV:N/A:N/C:N/I:L/PR:L/S:U/UI:N
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02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.5% of scored records. A rank, not a probability.
NVD base score
4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-12-18 09:28Z5 YR AGO
Last updated
2024-08-04 15:49Z2 YR AGO
Reserved
2020-09-30
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Medium (CVSS 4.3)
CNA CVSS vector
CVSS:3.1/AC:L/AV:N/A:N/C:N/I:L/PR:L/S:U/UI:N
Weaknesses
  • CWE-639Authorization Bypass Through User-Controlled KeyBase
Data version
5.1
Document digest
001d68e43218249bab85bcf8a25e8881864842daa32ac2367b4587ac7cfa7e37

05 Affected products

VendorProductVersionsPlatforms
tangrobusiness_workflowNot specified—

06 References