CVE-2019-6340

Drupal core - Highly critical - Remote Code Execution

Published Feb 21, 2019 CVSS 3.1 · 8.1 High EPSS 92.0% KEV · Listed
Description
Some field types do not properly sanitize data from non-form sources in Drupal 8.5.x before 8.5.11 and Drupal 8.6.x before 8.6.10. This can lead to arbitrary PHP code execution in some cases. A site is only affected by this if one of the following conditions is met: The site has the Drupal 8 core RESTful Web Services (rest) module enabled and allows PATCH or POST requests, or the site has another web services module enabled, like JSON:API in Drupal 8, or Services or RESTful Web Services in Drupal 7. (Note: The Drupal 7 Services module itself does not require an update at this time, but you should apply other contributed updates associated with this advisory if Services is in use.)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3gx6-h57h-rm27 Drupal Core Remote Code Execution Vulnerability
History
Type Values Removed Values Added
Metrics cvssV3_0

{'score': 8.1, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

kev

{'dateAdded': '2022-03-25'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
drupal
Published
Updated
Oct 21, 2025, 11:45 PM
Reserved
Jan 15, 2019, 12:00 AM
Status
Analyzed
Published
Feb 21, 2019, 9:29 PM
Modified
Jun 17, 2026, 2:39 AM