CVE-2019-6340
High 8.1 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Drupal Core Remote Code Execution Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
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.)
Metrics
- CVSS 3.1
-
8.1 (HIGH)
Score source: NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 92% (percentile: 100) as of 1 November 2026
- CWE
- CWE-502
Affected products
drupal: drupal
References
- https://www.drupal.org/sa-core-2019-003 MitigationVendor Advisory
- https://www.drupal.org/sa-core-2019-003 MitigationVendor Advisory
- https://www.exploit-db.com/exploits/46452/ PatchThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46452/ PatchThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46459/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46510/ ExploitThird Party Advisory
- https://www.exploit-db.com/exploits/46459/ ExploitThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/46510/ ExploitThird Party Advisory
- http://www.securityfocus.com/bid/107106 Broken LinkThird Party AdvisoryVDB Entry
- https://www.synology.com/security/advisory/Synology_SA_19_09 Third Party Advisory