CVE-2023-5193: Mattermost Incorrect Authorization vulnerability

September 29, 2023

Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.

References

github.com/advisories/GHSA-h8wh-f7gw-fwpr
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-5193

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