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Authenticated path traversal in Umbraco CMS

Moderate severity GitHub Reviewed Published Apr 13, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

nuget UmbracoCms (NuGet)

Affected versions

< 8.9.2

Patched versions

8.9.2

Description

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.

References

Published by the National Vulnerability Database Dec 30, 2020
Reviewed Apr 6, 2021
Published to the GitHub Advisory Database Apr 13, 2021
Last updated Feb 1, 2023

Severity

Moderate
6.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weaknesses

CVE ID

CVE-2020-5811

GHSA ID

GHSA-936x-wgqv-hhgq

Source code

No known source code
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