CVE-2023-6547

Playbooks access/modification by removed team member

State: Published
Severity: 3.7 Low
Published: Dec 12, 2023
Updated: May 12, 2025
Reserved: Dec 6, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N	Mattermost

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
MattermostMattermost	8.1.5 and earlierAffected 9.2.1 and earlierAffected 8.1.6Not affected 9.2.2Not affected

References

https://mattermost.com/security-updates

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