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    CVE-2020-5809

    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.

    Published:Dec 30, 2020
    Last Modified:Nov 21, 2024
    EPS:Dec 30, 2020
    EPSS Score:0.0042
    CVSS Score:5.4

    Affected Products

    Vendor
    Umbraco
    Product
    Umbraco Cms

    Exploits

    https://www.tenable.com/security/research/tra-2020-59https://www.tenable.com/security/research/tra-2020-59

    Related CVEs

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    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