Medium severity · published Dec 6, 2023
CVE-2023-6459
Public endpoint /metrics of Calls plugin reveals channel IDs
5.3
CVSS
0.5%
EPSS
No
On KEV
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:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
through 7.8.13; through 8.1.4 · source: vendor
MS
Mattermost Server · Mattermost
before 7.8.14; 8.0.0 before 8.1.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6459
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6459
Vendor Advisory
https://mattermost.com/security-updates
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