What is CVE-2018-21264?

CVE-2018-21264 is a high-severity vulnerability in Mattermost Server, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2020-06-19.

How severe is CVE-2018-21264?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Mattermost Server

CVE-2018-21264

An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.011 (62.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mattermost Mattermost_server — versions 4.7.0
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-21264?: CVE-2018-21264 is a high-severity vulnerability in Mattermost Server, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2020-06-19.
How severe is CVE-2018-21264?: High severity. CVSS v3 base score is 8.8 out of 10.