CVE-2023-4105

Attachment of deleted message in a thread remains accessible and downloadable

Published Aug 11, 2023 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message

Remediation

Vendor Solution

Update Mattermost Server to versions 7.10.4, 7.9.6, 7.8.8 or higher

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-2285 Mattermost fails to delete the attachments when deleting a message in a thread allowing a simple user to still be able to access and download the attachment of a deleted message
Github GHSA Github GHSA GHSA-g3v6-r8p9-wxg9 Mattermost fails to correctly delete attachments
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 1, 2024, 8:31 PM
Reserved
Aug 2, 2023, 2:51 PM
Status
Modified
Published
Aug 11, 2023, 7:15 AM
Modified
Jun 17, 2026, 6:37 AM