GHSA-95qr-67rx-9pgh

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    GHSA-95qr-67rx-9pgh

    Published: 24 May 2022Last Modified: 16 Feb 2024
    Aliases:
    CVE-2020-5809

    Summary: Umbraco CMS vulnerable to stored XSS

    Details: A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-5809, https://github.com/umbraco/Umbraco-CMS, https://www.tenable.com/security/research/tra-2020-59

    Affected packages

    Package

    Name: UmbracoCms.Core

    Purl: pkg:nuget/UmbracoCms.Core

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.10.0
    4.10.0-beta
    4.10.0-rc
    4.10.1

    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-95qr-67rx-9pgh | CVE-DB