CVE-2021-33604

    Dashboard / Vulnerabilities / CVE-2021-33604

    CVE-2021-33604

    Published: 24 Jun 2021Last Modified: 11 Sept 2026

    Summary:

    Details: URL encoding error in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser.

    References: https://vaadin.com/security/cve-2021-33604, https://github.com/vaadin/flow/pull/11099

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 8e306579f157678c3baa3f3f63f406d073668161
    Fixed -None

    Affected versions

    6.0.9
    6.0.8
    6.0.7
    6.0.6
    6.0.5
    6.0.4
    6.0.3
    6.0.2
    6.0.1
    6.0.0.rc1
    6.0.0

    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
    CVE-2021-33604 | CVE-DB