VulnerabilityModified
CVE-2020-26174
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.
HIGH 8.8EPSS 1.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.25% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- tangro/business workflow
- Source
- cve@mitre.org
References
- https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/Exploit, Third Party Advisory
- https://www.tangro.de/Product
- https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/Exploit, Third Party Advisory
- https://www.tangro.de/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.