What is CVE-2018-21248?

CVE-2018-21248 is a high-severity vulnerability in Mattermost Server, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2020-06-19.

How severe is CVE-2018-21248?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mattermost Server

CVE-2018-21248

An issue was discovered in Mattermost Server before 5.4.0. It mishandles possession of superfluous authentication credentials.

EPSS: 0.012 (65.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Mattermost Mattermost_server
N/a — versions n/a

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-21248?: CVE-2018-21248 is a high-severity vulnerability in Mattermost Server, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2020-06-19.
How severe is CVE-2018-21248?: High severity. CVSS v3 base score is 7.5 out of 10.