CVE-2021-37864

Users can view the contents of an archived channel when access is explicitly denied by the system admin

Published Jan 18, 2022 CVSS 3.1 · 2.6 Low EPSS < 1% KEV · Not listed
Description
Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-24342 Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 6, 2024, 11:11 PM
Reserved
Aug 2, 2021, 12:00 AM
Status
Modified
Published
Jan 18, 2022, 5:15 PM
Modified
Jun 17, 2026, 4:01 AM