CVE-2023-6459: Public endpoint /metrics of Calls plugin reveals channel IDs

5.3 CVSS

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.

Classification

CVE ID: CVE-2023-6459

CVSS Base Severity: MEDIUM

CVSS Base Score: 5.3

Affected Products

Vendor: Mattermost

Product: Mattermost

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.06% (probability of being exploited)

EPSS Percentile: 29.94% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://mattermost.com/security-updates

Timeline