Path Traversal in Umbraco Umbraco_cms
CVE-2020-5811
An authenticated path traversal vulnerability exists during package installation in Umbraco CMS <= 8.9.1 or current, which could result in arbitrary files being written outside of the site home and expected paths when installing an Umbraco…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.094 (94.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Umbraco Umbraco_cms
- N/a Umbraco Cms — versions <= 8.9.1 or current (unfixed)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vulnreport@tenable.com (Exploit, Third Party Advisory, x_refsource_MISC)
- vulnreport@tenable.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-5811?
- CVE-2020-5811 is a medium-severity vulnerability in Umbraco Umbraco_cms, classified under Path Traversal. CVSS score: 6.5/10. Published 2020-12-30.
- How severe is CVE-2020-5811?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-5811 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.