Drupal core - Highly critical - Remote Code Execution
Priority CRITICAL 94Exploited in the wildCWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
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.)
Why it matters now
Exploitation Active In CISA KEV since 2022-03-25CISA due date 2022-04-15
EPSS 0.92017 99th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by the CNA and NVD
Fix Fixed Drupal Core (Drupal): 8.5.11, 8.6.10drupal/core (Packagist): 8.6.10, 7.62.0, 8.5.11+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Drupal | Drupal Core | 8.5 to before 8.5.11; 8.6 to before 8.6.10 | 8.5.11, 8.6.10 | Patch available | CNA |
| — | drupal/core (Packagist) | 8.6.0 to before 8.6.10 | 8.6.10 | Patch available | GHSA-3gx6-h57h-rm27 |
| — | drupal/core (Packagist) | 7.0.0 to before 7.62.0 | 7.62.0 | Patch available | GHSA-3gx6-h57h-rm27 |
| — | drupal/core (Packagist) | 8.0.0 to before 8.5.11 | 8.5.11 | Patch available | GHSA-3gx6-h57h-rm27 |
| — | drupal/drupal (Packagist) | 7.0.0 to before 7.62.0 | 7.62.0 | Patch available | GHSA-3gx6-h57h-rm27 |
| — | drupal/drupal (Packagist) | 8.0.0 to before 8.5.11 | 8.5.11 | Patch available | GHSA-3gx6-h57h-rm27 |
| — | drupal/drupal (Packagist) | 8.6.0 to before 8.6.10 | 8.6.10 | Patch available | GHSA-3gx6-h57h-rm27 |
- Drupal Core VendorDrupal Affected 8.5 to before 8.5.11; 8.6 to before 8.6.10 Fixed in 8.5.11, 8.6.10 Patch available CNA
- drupal/core (Packagist) Vendor— Affected 8.6.0 to before 8.6.10 Fixed in 8.6.10 Patch available GHSA-3gx6-h57h-rm27
- drupal/core (Packagist) Vendor— Affected 7.0.0 to before 7.62.0 Fixed in 7.62.0 Patch available GHSA-3gx6-h57h-rm27
- drupal/core (Packagist) Vendor— Affected 8.0.0 to before 8.5.11 Fixed in 8.5.11 Patch available GHSA-3gx6-h57h-rm27
- drupal/drupal (Packagist) Vendor— Affected 7.0.0 to before 7.62.0 Fixed in 7.62.0 Patch available GHSA-3gx6-h57h-rm27
- drupal/drupal (Packagist) Vendor— Affected 8.0.0 to before 8.5.11 Fixed in 8.5.11 Patch available GHSA-3gx6-h57h-rm27
- drupal/drupal (Packagist) Vendor— Affected 8.6.0 to before 8.6.10 Fixed in 8.6.10 Patch available GHSA-3gx6-h57h-rm27
Remediation
- Fix · CNA Drupal Core (Drupal) Fixed in 8.5.11, 8.6.10
- Fix · GHSA-3gx6-h57h-rm27 drupal/core (Packagist) Fixed in 8.6.10 Advisory →
- Fix · GHSA-3gx6-h57h-rm27 drupal/core (Packagist) Fixed in 7.62.0 Advisory →
- Fix · GHSA-3gx6-h57h-rm27 drupal/core (Packagist) Fixed in 8.5.11 Advisory →
- Fix · GHSA-3gx6-h57h-rm27 drupal/drupal (Packagist) Fixed in 7.62.0 Advisory →
- Fix · GHSA-3gx6-h57h-rm27 drupal/drupal (Packagist) Fixed in 8.5.11 Advisory →
- Fix · GHSA-3gx6-h57h-rm27 drupal/drupal (Packagist) Fixed in 8.6.10 Advisory →
Vendor assessments
Timeline
- 2022-03-25 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2019-6340
- 2026-10-03 Alias added: GHSA-3gx6-h57h-rm27
References
Advisory 3
Other 7
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2019-6340.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-6340.yaml
- https://github.com/drupal/drupal
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-6340
- https://www.exploit-db.com/exploits/46452
- https://www.exploit-db.com/exploits/46459
- https://www.exploit-db.com/exploits/46510
More Drupal vulnerabilities
- TI-2026-07979 Drupal core - Highly critical - SQL injection - SA-CORE-2026-004 KEVCVSS 3.1CRITICAL 9.8
- TI-2018-05494 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004 KEVCVSS 3.1CRITICAL 9.8
- TI-2018-05493 Improper input validation in Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-10731 Unrestricted file upload in Drupal Core KEVCVSS 3.1HIGH 8.8
- TI-2020-17477 Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks… KEVCVSS 3.1HIGH 7.8
- TI-2020-18513 Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal… KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2019-6340 · CVE Program
- CVE-2019-6340 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-3gx6-h57h-rm27 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-6340 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences