What is CVE-2021-37864?

CVE-2021-37864 is a low-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 2.6/10. Published 2022-01-18.

How severe is CVE-2021-37864?

Low severity. CVSS v3 base score is 2.6 out of 10.

Auth bypass in Mattermost

CVE-2021-37864

Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.

EPSS: 0.006 (44.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Mattermost — versions unspecified

Weakness classification (CWE)

CWE-284 — Improper Access Control
CWE-863 — Incorrect Authorization

References

responsibledisclosure@mattermost.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-37864?: CVE-2021-37864 is a low-severity vulnerability in Mattermost, classified under Improper Access Control. CVSS score: 2.6/10. Published 2022-01-18.
How severe is CVE-2021-37864?: Low severity. CVSS v3 base score is 2.6 out of 10.