CVE-2023-6547

Playbooks access/modification by removed team member

CVSS 3.7 LOWEPSS 0.3%CWE-284

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3.7EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Dec 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Mattermost · Mattermost

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References

https://mattermost.com/security-updates