GHSA-936x-wgqv-hhgq

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    GHSA-936x-wgqv-hhgq

    Published: 13 Apr 2021Last Modified: 10 Sept 2026
    Aliases:
    CVE-2020-5811

    Summary: Authenticated path traversal in Umbraco CMS

    Details: 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: https://nvd.nist.gov/vuln/detail/CVE-2020-5811, https://www.tenable.com/security/research/tra-2020-59, http://packetstormsecurity.com/files/163965/Umbraco-CMS-8.9.1-Traversal-Arbitrary-File-Write.html

    Affected packages

    Package

    Name: UmbracoCms

    Purl: pkg:nuget/UmbracoCms

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -8.9.2

    Affected versions

    4.10.0
    4.10.0-beta
    4.10.0-rc
    4.10.1
    4.10.1.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-936x-wgqv-hhgq | CVE-DB