CVE-2024-47145

Unauthorized access on archived channels via file links

Published Sep 26, 2024 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Mattermost versions 9.5.x <= 9.5.8 fail to properly authorize access to archived channels when viewing archived channels is disabled, which allows an attacker to view posts and files of archived channels via file links.

Remediation

Vendor Solution

Update Mattermost to versions 9.11.0, 9.5.9 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-42289 Mattermost versions 9.5.x <= 9.5.8 fail to properly authorize access to archived channels when viewing archived channels is disabled, which allows an attacker to view posts and files of archived channels via file links.
References
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00055}

epss

{'score': 0.0006}

Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost Server
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost
Mattermost mattermost Server
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Mattermost versions 9.5.x <= 9.5.8 fail to properly authorize access to archived channels when viewing archived channels is disabled, which allows an attacker to view posts and files of archived channels via file links.
Title Unauthorized access on archived channels via file links
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Sep 26, 2024, 1:12 PM
Reserved
Sep 23, 2024, 7:55 AM
Status
Analyzed
Published
Sep 26, 2024, 8:15 AM
Modified
Jun 17, 2026, 7:56 AM