Information disclosure in Mattermost
CVE-2023-6459
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.
Vulnerability class: Information Disclosure
EPSS: 0.005 (41.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Mattermost — versions 0, 8.1.5, 7.8.14
- Mattermost Mattermost_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- responsibledisclosure@mattermost.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-6459?
- CVE-2023-6459 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-12-06.
- How severe is CVE-2023-6459?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-6459 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.