CVE-2021-37863
5.7
MEDIUM
CVSS 3.1
EPSS 0.57%
Description
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.
How to fix CVE-2021-37863
To remediate CVE-2021-37863, upgrade the affected package to a fixed version below.
- Bitnami/mattermost—upgrade to 6.0.1 or later
Is CVE-2021-37863 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 6.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |