What is CVE-2021-37866?

CVE-2021-37866 is a medium-severity vulnerability in Mattermost Boards, classified under Insufficient Session Expiration. CVSS score: 4.7/10. Published 2022-01-18.

How severe is CVE-2021-37866?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Mattermost Boards

CVE-2021-37866

Mattermost Boards plugin v0.10.0 and earlier fails to invalidate a session on the server-side when a user logged out of Boards, which allows an attacker to reuse old session token for authorization.

EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Mattermost Boards — versions unspecified, 0.9.5, 0.8.4
Mattermost Mattermost_boards

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

responsibledisclosure@mattermost.com (x_refsource_MISC, Vendor Advisory)
responsibledisclosure@mattermost.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-37866?: CVE-2021-37866 is a medium-severity vulnerability in Mattermost Boards, classified under Insufficient Session Expiration. CVSS score: 4.7/10. Published 2022-01-18.
How severe is CVE-2021-37866?: Medium severity. CVSS v3 base score is 4.7 out of 10.