---
title: "CVE-2019-6342: Drupal Improper Access Control"
url: https://erroneo.us/security/cve/CVE-2019-6342/
description: "CVE-2019-6342 (drupal/core (Composer (PHP))): An access bypass vulnerability exists when the experimental Workspaces module in Drupal 8 core is enabled.…"
type: vulnerability-record
section: "Security Digest"
date_published: 2020-05-28
date_modified: 2024-08-04
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2019-6342"
kev: false
cvss: 9.8
epss: 0.02202
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2019-6342: Drupal Improper Access Control

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 2.2% , percentile 82: FIRST’s model estimates a 2.2% chance of exploitation activity in the next 30 days, higher than 82% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes drupal/core (Composer (PHP)) > 8.7.3, < 8.7.5, fixed in 8.7.5 ; drupal/drupal (Composer (PHP)) > 8.7.3, < 8.7.5, fixed in 8.7.5 . Check your lockfile, including transitive dependencies.

## What it is

An access bypass vulnerability exists when the experimental Workspaces module in Drupal 8 core is enabled. This can be mitigated by disabling the Workspaces module. It does not affect any release other than Drupal 8.7.4.

## Affected packages

- Composer (PHP) `drupal/core` > 8.7.3, < 8.7.5 → fixed: 8.7.5
- Composer (PHP) `drupal/drupal` > 8.7.3, < 8.7.5 → fixed: 8.7.5

## Affected products (CVE record)

- Drupal Drupal Core: Drupal 8 8.7.4

## Severity

- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- FIRST EPSS (model of 2026-10-21): 2.20% probability of exploitation activity in the next 30 days; percentile 82.

## Sources

- [GitHub Advisory GHSA-xq62-62c9-22mg](https://github.com/advisories/GHSA-xq62-62c9-22mg)
- [CVE.org record CVE-2019-6342](https://www.cve.org/CVERecord?id=CVE-2019-6342)
- [NVD entry CVE-2019-6342](https://nvd.nist.gov/vuln/detail/CVE-2019-6342)
- [drupal.org](https://www.drupal.org/sa-core-2019-008)
- [github.com](https://github.com/drupal/core/commit/bac9bde22bb545ff72570d8a46055c6c6e70e7c5)
- [github.com](https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2019-6342.yaml)
- [github.com](https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2019-6342.yaml)

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Source page: https://erroneo.us/security/cve/CVE-2019-6342/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt