CVE-2023-4106: Missing Authorization

August 11, 2023 (updated August 16, 2023)

Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.

References

github.com/advisories/GHSA-p267-jjfq-pphf
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-4106

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