Medium severity4.7NVD Advisory· Published Jan 18, 2022· Updated Jun 17, 2026

CVE-2021-37866

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mattermost/Boardsllm-fuzzy
Range: <=0.10.0
Mattermost/Mattermostcpe-rescue
Range: unspecified
Mattermost/Mattermost Boards
cpe:2.3:a:mattermost:mattermost_boards:*:*:*:*:*:*:*:*
Range: <=0.10.0

Patches

Vulnerability mechanics

References

www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866nvdExploitThird Party Advisory
mattermost.com/security-updates/nvdVendor Advisory

News mentions

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cvss	0.306
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000