CVE-2023-6459

Public endpoint /metrics of Calls plugin reveals channel IDs

Published Dec 6, 2023 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost is grouping calls in the /metrics endpoint by id and reports that id in the response. Since this id is the channelID, the public /metrics endpoint is revealing channelIDs.

Remediation

Vendor Solution

Update Mattermost Server to versions 8.1.5, 7.8.14 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2023-3122 Mattermost is grouping calls in the /metrics endpoint by id and reports that id in the response. Since this id is the channelID, the public /metrics endpoint is revealing channelIDs.
Github GHSA Github GHSA GHSA-63cv-4pc2-4fcf Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 16, 2024, 4:02 PM
Reserved
Dec 1, 2023, 10:14 AM
Status
Modified
Published
Dec 6, 2023, 9:15 AM
Modified
Jun 17, 2026, 6:50 AM