CVE-2021-37862

Description

Mattermost 6.0 and earlier fails to sufficiently validate the email address during registration, which allows attackers to trick users into signing up using attacker-controlled email addresses via crafted invitation token.

How to fix CVE-2021-37862

To remediate CVE-2021-37862, upgrade the affected package to a fixed version below.

• Bitnami/mattermost—upgrade to 6.0.1 or later

Is CVE-2021-37862 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 6.0.1

CVSS scores

References (3)

• WEBhackerone.com/reports/1357013
• WEBmattermost.com/security-updates/
• WEBnvd.nist.gov/vuln/detail/CVE-2021-37862