What’s Vulnerable › Vulnerabilities

CVE-2019-6340: Drupal Core Remote Code Execution Vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-25
• EPSS: 92.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-21 · updated 2026-06-17
• Weakness: CWE-502

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.)

Affected products

• Drupal: from 8.5.0 before 8.5.11; from 8.6.0 before 8.6.10 — fixed in 8.5.11, 8.6.10

How to fix

Upgrade to a fixed version: Drupal 8.5.11, 8.6.10. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/107106
• https://www.drupal.org/sa-core-2019-003
• https://www.exploit-db.com/exploits/46452/
• https://www.exploit-db.com/exploits/46459/
• https://www.exploit-db.com/exploits/46510/
• https://www.synology.com/security/advisory/Synology_SA_19_09
• http://www.securityfocus.com/bid/107106
• https://www.drupal.org/sa-core-2019-003
• https://www.exploit-db.com/exploits/46452/
• https://www.exploit-db.com/exploits/46459/
• https://www.exploit-db.com/exploits/46510/
• https://www.synology.com/security/advisory/Synology_SA_19_09

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