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CVE-2019-6340

98
FAUCET Score

CVE-2019-6340 is a critical remote code execution vulnerability affecting Drupal 8.5.x before 8.5.11 and 8.6.x before 8.6.10, stemming from improper data sanitization in certain field types when processing non-form input. This flaw is highly severe, with a CVSS score of 8.1, indicating it can be exploited remotely with low attack complexity, requiring no user interaction, and leading to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, with multiple public exploit modules available (e.g., Metasploit, Nuclei, ExploitDB), and has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.5.0, < 8.5.11CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
>= 8.6.0, < 8.6.10CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
>= 8.5, < 8.5.11CPE match
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
>= 8.6, < 8.6.10CPE match
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
92.02%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
Added to KEV · Mar 25, 2022
Metasploit: Drupal RESTful Web Services unserialize() RCE · Feb 20, 2019
Nuclei: CVE-2019-6340 · Nov 21, 2020
ExploitDB: EDB-46510 · Mar 7, 2019
This CVE's current EPSS score of 0.9202 is in the 100th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

composerpatch availablevia ghsa
Product: drupal/coreFixed in: 8.6.10
composerpatch availablevia ghsa
Product: drupal/coreFixed in: 7.62.0
composerpatch availablevia ghsa
Product: drupal/coreFixed in: 8.5.11
composerpatch availablevia ghsa
Product: drupal/drupalFixed in: 7.62.0
composerpatch availablevia ghsa
Product: drupal/drupalFixed in: 8.5.11
composerpatch availablevia ghsa
Product: drupal/drupalFixed in: 8.6.10

Vendor Advisories (1)

composerGHSA-3gx6-h57h-rm27high

Drupal Core Remote Code Execution Vulnerability

May 13, 2022

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
drupal.org / sa-core-2019-003
MitigationVendor Advisory
exploit-db.com / exploits/46452
PatchThird Party AdvisoryVDB Entry
exploit-db.com / exploits/46459
ExploitThird Party AdvisoryVDB Entry
exploit-db.com / exploits/46510
ExploitThird Party Advisory
synology.com / security/advisory/Synology_SA_19_09
Third Party Advisory
securityfocus.com / bid/107106
Broken LinkThird Party AdvisoryVDB Entry