What is CVE-2017-18876?

CVE-2017-18876 is a medium-severity vulnerability in Mattermost Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.9/10. Published 2020-06-19.

How severe is CVE-2017-18876?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Mattermost Server

CVE-2017-18876

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.

EPSS: 0.009 (54.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Mattermost Mattermost_server — versions 4.3.0
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-2017-18876?: CVE-2017-18876 is a medium-severity vulnerability in Mattermost Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.9/10. Published 2020-06-19.
How severe is CVE-2017-18876?: Medium severity. CVSS v3 base score is 4.9 out of 10.