CVE-2024-1887

Public channel post content accessible without membership when compliance export is enabled

Published Feb 29, 2024 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export. 

Remediation

Vendor Solution

Update Mattermost Server to versions 9.4,0, 9.3.1, 9.2.5, 8.1.9 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0634 Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export. 
Github GHSA Github GHSA GHSA-fx48-xv6q-6gp3 Mattermost post fetching without auditing in compliance export
References
History
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Aug 7, 2024, 5:38 PM
Reserved
Feb 26, 2024, 9:14 AM
Status
Analyzed
Published
Feb 29, 2024, 8:15 AM
Modified
Jun 17, 2026, 7:05 AM