Auth bypass in Tangro Business Workflow
CVE-2020-26173
An incorrect access control implementation in Tangro Business Workflow before 1.18.1 allows an attacker to download documents (PDF) by providing a valid document ID and token. No further authentication is required.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.tangro.de/ (Product)
- blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-26173?
- CVE-2020-26173 is a low-severity vulnerability in Tangro Business Workflow, classified under Missing Authentication for Critical Function. CVSS score: 3.1/10. Published 2020-12-18.
- How severe is CVE-2020-26173?
- Low severity. CVSS v3 base score is 3.1 out of 10.