CVE-2017-18876

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.9 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
VendorProductVersion
mattermostmattermost_server
𝑥
< 4.1.2
mattermostmattermost_server
4.2.0 ≤
𝑥
< 4.2.1
mattermostmattermost_server
4.3.0:rc1
mattermostmattermost_server
4.3.0:rc2
mattermostmattermost_server
4.3.0:rc3
mattermostmattermost_server
4.3.0:rc4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mattermost.com/security-updates/
https://mattermost.com/security-updates/