CVE-2020-8294

    Dashboard / Vulnerabilities / CVE-2020-8294

    CVE-2020-8294

    Published: 3 Feb 2021Last Modified: 7 Aug 2026

    Summary:

    Details: A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.

    References: https://nextcloud.com/security/advisory/?id=NC-SA-2021-002, https://hackerone.com/reports/1023787

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -148e875f8edbf2f66d1f9a5d1a13ececc5b4da4d

    Affected versions

    v18.0.11RC2
    v18.0.11RC1
    v18.0.10
    v18.0.10RC2
    v18.0.10RC1
    v18.0.9
    v18.0.9RC1
    v18.0.8
    v18.0.8RC2
    v18.0.8RC1
    v18.0.7
    v18.0.7RC1
    v18.0.6
    v18.0.5
    v18.0.4
    v18.0.4RC2
    v18.0.4RC1
    v18.0.2
    v18.0.2RC2
    v18.0.2RC1
    v18.0.1
    v18.0.1RC3
    v18.0.1RC2
    v18.0.1RC1
    v18.0.0
    v18.0.0RC2
    v18.0.0RC1
    v18.0.0beta4
    v18.0.0beta3
    v18.0.0beta2
    v18.0.0beta1

    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-2020-8294 | CVE-DB