CVE-2021-37866

7.5 highEPSS 0.7%

High (7.5) in mattermost mattermost boards. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-613
Published: 2022-01-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mattermost:mattermost_boards

References

https://mattermost.com/security-updates/
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866
https://mattermost.com/security-updates/
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866

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