UBUNTU-CVE-2021-21809

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    UBUNTU-CVE-2021-21809

    Published: 23 Jun 2021Last Modified: 24 Oct 2025
    Upstream:

    Summary:

    Details: A command execution vulnerability exists in the default legacy spellchecker plugin in Moodle 3.10. A specially crafted series of HTTP requests can lead to command execution. An attacker must have administrator privileges to exploit this vulnerabilities.

    Affected packages

    Package

    Name: moodle

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-0ubuntu1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.7.9+dfsg-1
    2.7.10+dfsg-1
    2.7.11+dfsg-1
    2.7.11+dfsg-2
    2.7.12+dfsg-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
    UBUNTU-CVE-2021-21809 | CVE-DB