What is CVE-2019-20879?

CVE-2019-20879 is a medium-severity vulnerability in Mattermost Server, classified under Improper Authentication. CVSS score: 4.3/10. Published 2020-06-19.

How severe is CVE-2019-20879?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Mattermost Server

CVE-2019-20879

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. Changes to e-mail addresses do not require credential re-entry.

Vulnerability class: Broken Authentication

EPSS: 0.006 (44.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Mattermost Mattermost_server — versions 5.8.0
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-20879?: CVE-2019-20879 is a medium-severity vulnerability in Mattermost Server, classified under Improper Authentication. CVSS score: 4.3/10. Published 2020-06-19.
How severe is CVE-2019-20879?: Medium severity. CVSS v3 base score is 4.3 out of 10.