DRUPAL-CORE-2020-012

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    DRUPAL-CORE-2020-012

    Published: 18 Nov 2020Last Modified: 19 Sept 2026

    Summary:

    Details: *Update November 18: Documented longer list of dangerous file extensions* Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extension and served as the wrong MIME type or executed as PHP for certain hosting configurations.

    References: https://www.drupal.org/sa-core-2020-012

    Affected packages

    Package

    Name: drupal/core

    Purl: pkg:composer/drupal/core

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 8.0.0
    Fixed -8.8.11

    Affected versions

    8.0.0
    8.0.1
    8.0.2
    8.0.3
    8.0.4
    8.0.5
    8.0.6

    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
    DRUPAL-CORE-2020-012 | CVE-DB