UBUNTU-CVE-2021-32862

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-32862

    UBUNTU-CVE-2021-32862

    Published: 18 Aug 2022Last Modified: 24 Oct 2025
    Upstream:
    CVE-2021-32862

    Summary:

    Details: The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).

    References: https://ubuntu.com/security/CVE-2021-32862, https://github.com/jupyter/nbconvert/security/advisories/GHSA-9jmq-rx5f-8jwq, https://github.com/jupyter/nbviewer/security/advisories/GHSA-h274-fcvj-h2wm, https://www.cve.org/CVERecord?id=CVE-2021-32862

    Affected packages

    Package

    Name: nbconvert

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.2.0-4

    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
    UBUNTU-CVE-2021-32862 | CVE-DB