CVE-2024-47003

DoS via non-string message using permalink embed

Published Sep 26, 2024 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.

Remediation

Vendor Solution

Update Mattermost to versions 10.0.0, 9.11.1, 9.5.9 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-2720 Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.
Github GHSA Github GHSA GHSA-59hf-mpf8-pqjh Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` events
References
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00158}

epss

{'score': 0.00171}

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:9.11.0:-:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc3:*:*:*:*:*:*
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 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.
Title DoS via non-string message using permalink embed
Weaknesses CWE-400
References
Metrics cvssV3_1

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Sep 26, 2024, 1:11 PM
Reserved
Sep 23, 2024, 7:55 AM
Status
Analyzed
Published
Sep 26, 2024, 8:15 AM
Modified
Jun 17, 2026, 7:56 AM