CVE-2024-1942

Published Feb 29, 2024 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost versions 8.1.x before 8.1.9, 9.2.x before 9.2.5, and 9.3.0 fail to sanitize the metadata on posts containing permalinks under specific conditions, which allows an authenticated attacker to access the contents of individual posts in channels they are not a member of.

Remediation

Vendor Solution

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

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0657 Mattermost versions 8.1.x before 8.1.9, 9.2.x before 9.2.5, and 9.3.0 fail to sanitize the metadata on posts containing permalinks under specific conditions, which allows an authenticated attacker to access the contents of individual posts in channels they are not a member of.
Github GHSA Github GHSA GHSA-hwjf-4667-gqwx Mattermost allows attackers access to posts in channels they are not a member of
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:*:*:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.3.0:*:*:*:*:*:*:*
Vendors & Products Mattermost
Mattermost mattermost Server
Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Aug 12, 2024, 1:16 PM
Reserved
Feb 27, 2024, 6:10 PM
Status
Analyzed
Published
Feb 29, 2024, 11:15 AM
Modified
Jun 17, 2026, 7:05 AM