CVE-2023-6547 LOW

CVE-2023-6547: Playbooks access/modification by removed team member

Vendor Mattermost
Product Mattermost
Weakness CWE-284
Published December 12, 2023
Last update May 12, 2025
View on NVD All CVEs

CVSS base score

3.7/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Mattermost fails to validate team membership when a user attempts to access a playbook, allowing a user with permissions to a playbook but no permissions to the team the playbook is on to access and modify the playbook. This can happen if the user was once a member of the team, got permissions to the playbook and was then removed from the team. 

Key dates

02Disclosure timeline

December 12, 2023 CVE published
May 12, 2025 Record updated