CVE-2023-6459 — Sensitive Information Exposure in Mattermost Mattermost-server V6

CWE-200 — Sensitive Information Exposure4 documents4 sources
Severity
5.3MEDIUMNVD
EPSS
0.5%
top 34.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Github.com Mattermost Mattermost-server V6Github.com Mattermost Mattermost Server V8Mattermost Server+1 more
Timeline
PublishedDec 6

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages4 packages

▶NVDmattermost/mattermost_server8.0.0 — 8.1.5+1
▶CVEListV5mattermost/mattermost7.8.13+1

🔴Vulnerability Details

3
GHSA
Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability↗2023-12-06
▶
CVEList
Public endpoint /metrics of Calls plugin reveals channel IDs↗2023-12-06
▶
OSV
Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability↗2023-12-06
▶
CVE-2023-6459 — Sensitive Information Exposure | cvebase