Is CVE-2019-6340 actively exploited?

CVE-2019-6340 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2019-6340?

CVE-2019-6340 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2019-6340?

Patch guidance is available from drupal security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-6340.

Which products are affected by CVE-2019-6340?

2 products: drupal drupal, drupal drupal.

Fix CVE-2019-6340 - HIGH drupal drupal

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.)

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: DRUPAL
Published: 2/21/2019
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2019-6340

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary