Vulnerability: Unauthorized Viewing of Archived Channels in Mattermost Permalink Previews

Vulnerability: Unauthorized Viewing of Archived Channels in Mattermost Permalink Previews

CVE-2023-43754 · MEDIUM Severity

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

Mattermost fails to check whether the  “Allow users to view archived channels”  setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled. 

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