CVE-2019-6340

CVE-2019-6340 is a high-severity (CVSS 8.1) vulnerability in Drupal Core. CISA added it to the Known Exploited Vulnerabilities catalog on March 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 15, 2022. CISA does not currently list it as used in ransomware campaigns. Drupal has 5 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

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 vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

• 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