CVE-2021-37866 | BDVDB-2026-167995 Detail

MattermostMattermost Boards

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: local.

Weaknesses#

CWE-613 Insufficient Session Expiration

References#

Exploit#

No public exploit known

History#

Version 12022-01-18Record published in the CVE List.
Version 22024-12-06Most recent update recorded in the CVE List.

Published

Published: 2022-01-18
Last modified: 2024-12-06

Vendor information

Vendor: Mattermost
Product: Mattermost Boards

All Mattermost vulnerabilities

Score

4.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 54.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 0.10.0
Fixed
Not stated
Vulnerable
Not stated
Fixed
0.9.5
Vulnerable
Not stated
Fixed
0.8.4
Vulnerable
Not stated
Fixed
0.7.5

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.7 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).