What is CVE-2017-18894?

CVE-2017-18894 is a high-severity vulnerability in Mattermost Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.1/10. Published 2020-06-19.

How severe is CVE-2017-18894?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Mattermost Server

CVE-2017-18894

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Sometimes. resource-owner authorization is bypassed, allowing account takeover.

EPSS: 0.008 (53.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Mattermost Mattermost_server — versions 4.2.0
N/a — versions n/a

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-18894?: CVE-2017-18894 is a high-severity vulnerability in Mattermost Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 8.1/10. Published 2020-06-19.
How severe is CVE-2017-18894?: High severity. CVSS v3 base score is 8.1 out of 10.