CVE-2023-3582

EUVD-2023-44232
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, 
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
MattermostCNA
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
Affected Products (NVD)
VendorProductVersion
mattermostmattermost_server
7.8.0 ≤
𝑥
< 7.8.7
mattermostmattermost_server
7.9.0 ≤
𝑥
< 7.9.5
mattermostmattermost_server
7.10.0 ≤
𝑥
< 7.10.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mattermost.com/security-updates
https://mattermost.com/security-updates