What is CVE-2023-2792?

CVE-2023-2792 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 6.5/10. Published 2023-06-16.

How severe is CVE-2023-2792?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in Mattermost

CVE-2023-2792

Mattermost fails to sanitize ephemeral error messages, allowing an attacker to obtain arbitrary message contents by a specially crafted /groupmsg command.

Vulnerability class: Information Disclosure

Published 2023-06-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Mattermost — versions 0, 7.10.0, 7.1.10

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

mattermost.com/security-updates/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-2792?: CVE-2023-2792 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 6.5/10. Published 2023-06-16.
How severe is CVE-2023-2792?: Medium severity. CVSS v3 base score is 6.5 out of 10.