Vulnerability identifier: #VU46768

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13667

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within the Workspaces module when working with multiple workspaces. A remote attacker can bypass implemented security restrictions and gain unauthorized access to yet not published content.

Successful exploitation of the vulnerability requires that the experimental Workspaces module is installed.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drupal: 9.0.0 - 9.0.5, 8.9.0 - 8.9.5, 8.8.0 - 8.8.9, 8.7.0 - 8.7.14, 8.6.0 - 8.6.18, 8.5.0 - 8.5.15, 8.4.0 - 8.4.8, 8.3.0 - 8.3.9, 8.2.0 - 8.2.8, 8.1.0 - 8.1.10, 8.0 - 8.0.6

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External links
http://www.drupal.org/sa-core-2020-008

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.