What is CVE-2022-1384?

CVE-2022-1384 is a medium-severity vulnerability in Mattermost, classified under CWE-477. CVSS score: 4.7/10. Published 2022-04-19.

How severe is CVE-2022-1384?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Auth bypass in Mattermost

CVE-2022-1384

Mattermost version 6.4.x and earlier fails to properly check the plugin version when a plugin is installed from the Marketplace, which allows an authenticated and an authorized user to install and exploit an old plugin version from the Marketplace which might have known vulnerabilities.

Published 2022-04-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Mattermost — versions unspecified
Mattermost Server

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2022-1384?: CVE-2022-1384 is a medium-severity vulnerability in Mattermost, classified under CWE-477. CVSS score: 4.7/10. Published 2022-04-19.
How severe is CVE-2022-1384?: Medium severity. CVSS v3 base score is 4.7 out of 10.