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Servers and applications

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 package.

Severity
Medium 6.5
Published
30 Dec 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Umbraco CMSServers and applications · cpe:a:umbraco:umbraco_cms
  • Every version up to 8.9.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-5811
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-5811