Drupal · Core
CVE-2019-6340
Drupal core - Highly critical - Remote Code Execution
What it is
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.)
CISA: In Drupal Core, some field types do not properly sanitize data from non-form sources. This can lead to arbitrary PHP code execution in some cases.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: April 15, 2022
More exploited flaws from Drupal
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| May 22, 2026 | SQL Injection | Core | Critical 9.8 | 89% |
| Apr 13, 2022 | Remote Code Execution | Core | High 8.1 | 99.2% |
| Jan 18, 2022 | core Un-restricted Upload of File | Drupal core | High 8.8 | 36% |
| Nov 3, 2021 | Core Remote Code Execution | Drupal Core | Critical 9.8 | >99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.