CVE-2017-18883

moderate-risk
Published 2020-06-19

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.

Do I need to act?

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0.31% 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
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Mattermost

References (2)

Vendor Advisory https://mattermost.com/security-updates/
Vendor Advisory https://mattermost.com/security-updates/
44
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 1/34 · Minimal
Exposure 12/34 · Low