CVE-2017-6921

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    CVE-2017-6921

    Published: 15 Jan 2019Last Modified: 8 Jul 2026

    Summary:

    Details: In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.

    References: http://www.securityfocus.com/bid/99222, http://www.securitytracker.com/id/1038781, https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/2017-06-21/drupal-core-multiple

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 35c2f3ca5c935f3d8bde15932a712677c9bbd50f
    Fixed -a795651d0b60a8a5d4867223fbc10bcbdfb5ee87

    Affected versions

    8.3.3
    8.3.2
    8.3.0
    8.3.0-rc2
    8.3.0-rc1
    8.3.0-beta1
    8.3.0-alpha1

    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