CVE-2021-37866

low-risk
Published 2022-01-18

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.

Do I need to act?

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0.19% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (1)

Mattermost Boards

Affected Vendors

Mattermost

References (4)

Vendor Advisory https://mattermost.com/security-updates/
Exploit https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866
Vendor Advisory https://mattermost.com/security-updates/
Exploit https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866
18
/ 100
low-risk
Severity 12/34 · Low
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal