CVE-2017-6927

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    CVE-2017-6927

    Published: 1 Mar 2018Last Modified: 8 Jul 2026

    Summary:

    Details: Drupal 8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57 has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output does not typically go through Twig autoescaping). This function does not correctly handle all methods of injecting malicious HTML, leading to a cross-site scripting vulnerability under certain circumstances. The PHP functions which Drupal provides for HTML escaping are not affected.

    References: http://www.securityfocus.com/bid/103138, https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html, https://www.debian.org/security/2018/dsa-4123, https://www.drupal.org/sa-core-2018-001

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 497914920385b7016ac9c9367e0198530787adf2
    Fixed -bc929eb17c4f4eea83cb796b7c5bbb984bf288bd

    Affected versions

    7.56

    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