CVE-2023-6547

published 2023-12-12

CVE-2023-6547: 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…

medium 5.4 CVSS 3.1

AV N AC L PR L UI N S U C L I L A N

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost	<= 8.1.5	—
mattermost	mattermost_server	<= 8.1.5	—
mattermost	mattermost_server	9.2.0 – 9.2.1	—

CWE-284