CVE-2020-13667
Drupal Core Access bypass vulnerability
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
5.3
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.
- Record
CVE-2020-13667- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-276
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2020-13667- Updated
- 2026-11-02
EUVDEUVD-2022-5688 No score
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.
- Record
EUVD-2022-5688- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x2q9-r8gm-f657
5.3
Drupal Core Access bypass vulnerability
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.
- Record
GHSA-x2q9-r8gm-f657- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-276
- Updated
- 2026-11-02
OSV
5.3
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.
- Record
CVE-2020-13667- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-x2q9-r8gm-f657
5.3
Drupal Core Access bypass vulnerability
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.
- Record
GHSA-x2q9-r8gm-f657- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-276
- Updated
- 2026-11-02
OSVBIT-drupal-2020-13667 No score
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.
- Record
BIT-drupal-2020-13667- Updated
- 2026-11-02
OSVDRUPAL-CORE-2020-008 No score
The experimental Workspaces module allows you to create multiple workspaces on your site in which draft content can be edited before being published to the live workspace.
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.
- Record
DRUPAL-CORE-2020-008- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/corePackagist |
8.8.0 up to 8.8.10 | 8.8.10 |
drupal/corePackagist |
8.9.0 up to 8.9.6 | 8.9.6 |
drupal/corePackagist |
9.0.0 up to 9.0.6 | 9.0.6 |
drupal/drupalPackagist |
8.8.0 up to 8.8.10 | 8.8.10 |
drupal/drupalPackagist |
8.9.0 up to 8.9.6 | 8.9.6 |
drupal/drupalPackagist |
9.0.0 up to 9.0.6 | 9.0.6 |
drupalBitnami |
8.8.0 up to 8.8.10, 8.9.0 up to 8.9.6, 9.0.0 up to 9.0.6 | 8.8.108.9.69.0.6 |
drupal/corePackagist |
8.0.0 up to 8.8.10, 8.9.0 up to 8.9.6, 9.0.0 up to 9.0.6, plus listed versions 8.0.18.0.28.0.38.0.48.0.5 Show 45 moreShow less8.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.28.2.38.2.48.2.58.2.68.2.78.2.88.3.08.3.0-alpha18.3.0-beta18.3.0-rc18.3.0-rc28.3.18.3.28.3.38.3.48.3.58.3.68.3.78.3.88.3.98.4.08.4.0-alpha1 |
8.8.108.9.69.0.6 |
drupal/corePackagist |
8.8.0 up to 8.8.10, plus listed versions 8.8.18.8.28.8.38.8.48.8.5 Show 4 moreShow less8.8.68.8.78.8.88.8.9 |
8.8.10 |
drupal/corePackagist |
8.9.0 up to 8.9.6, plus listed versions 8.9.18.9.28.9.38.9.48.9.5 |
8.9.6 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
drupal/corePackagist |
9.0.0 up to 9.0.6, plus listed versions 9.0.19.0.29.0.39.0.49.0.5 |
9.0.6 |
drupal/drupalPackagist |
8.8.0 up to 8.8.10, plus listed versions 8.8.18.8.28.8.38.8.48.8.5 Show 4 moreShow less8.8.68.8.78.8.88.8.9 |
8.8.10 |
drupal/drupalPackagist |
8.9.0 up to 8.9.6, plus listed versions 8.9.18.9.28.9.38.9.48.9.5 |
8.9.6 |
drupal/drupalPackagist |
9.0.0 up to 9.0.6, plus listed versions 9.0.19.0.29.0.39.0.49.0.5 |
9.0.6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13667 is a medium vulnerability (CVSS 5.3) in Drupal, published September 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.93%, the 60th percentile. Fixed in drupal/core 8.8.10.
References
drupal.org/sa-core-2020-008
nvd.nist.gov/vuln/detail/CVE-2020-13667
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2020-13667.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2020-13667.yaml
github.com/advisories/GHSA-x2q9-r8gm-f657
github.com/drupal/core
Left out here: 96 versions. The JSON record has them.