CVE-2017-18889

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
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
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 46%
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/