What is CVE-2021-37863?

CVE-2021-37863 is a low-severity vulnerability in Mattermost, classified under Improper Input Validation. CVSS score: 3.5/10. Published 2021-12-17.

How severe is CVE-2021-37863?

Low severity. CVSS v3 base score is 3.5 out of 10.

Improper input validation in Mattermost

CVE-2021-37863

Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.

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

EPSS: 0.008 (54.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.

Affected products

Mattermost — versions unspecified
Mattermost Mattermost_server

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

responsibledisclosure@mattermost.com (x_refsource_MISC, Vendor Advisory)
responsibledisclosure@mattermost.com (Permissions Required, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-37863?: CVE-2021-37863 is a low-severity vulnerability in Mattermost, classified under Improper Input Validation. CVSS score: 3.5/10. Published 2021-12-17.
How severe is CVE-2021-37863?: Low severity. CVSS v3 base score is 3.5 out of 10.