CVE-2023-3582

Lack of channel membership check when linking a board to a channel

Published Jul 17, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, 

Remediation

Vendor Solution

Update Mattermost Server to versions v7.8.7, v7.9.5, v7.10.3 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-44232 Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, 
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
Oct 21, 2024, 7:59 PM
Reserved
Jul 10, 2023, 12:41 PM
Status
Modified
Published
Jul 17, 2023, 4:15 PM
Modified
Jun 17, 2026, 6:14 AM