CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2019-20866

An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 42.9%

CVSS Severity

CVSS v3 Score 5.3

CVSS v2 Score 5.0

References

Products affected by CVE-2019-20866

Mattermost » Mattermost Server » Version: N/A

cpe:2.3:a:mattermost:mattermost_server:-
Mattermost » Mattermost Server » Version: 0.5.0

cpe:2.3:a:mattermost:mattermost_server:0.5.0
Mattermost » Mattermost Server » Version: 0.6.0

cpe:2.3:a:mattermost:mattermost_server:0.6.0
Mattermost » Mattermost Server » Version: 1.0.0

cpe:2.3:a:mattermost:mattermost_server:1.0.0
Mattermost » Mattermost Server » Version: 1.1.0

cpe:2.3:a:mattermost:mattermost_server:1.1.0
Mattermost » Mattermost Server » Version: 1.1.1

cpe:2.3:a:mattermost:mattermost_server:1.1.1
Mattermost » Mattermost Server » Version: 1.2.0

cpe:2.3:a:mattermost:mattermost_server:1.2.0
Mattermost » Mattermost Server » Version: 1.2.1

cpe:2.3:a:mattermost:mattermost_server:1.2.1
Mattermost » Mattermost Server » Version: 1.3.0

cpe:2.3:a:mattermost:mattermost_server:1.3.0
Mattermost » Mattermost Server » Version: 1.4.0

cpe:2.3:a:mattermost:mattermost_server:1.4.0
Mattermost » Mattermost Server » Version: 2.0.0

cpe:2.3:a:mattermost:mattermost_server:2.0.0
Mattermost » Mattermost Server » Version: 2.1.0

cpe:2.3:a:mattermost:mattermost_server:2.1.0
Mattermost » Mattermost Server » Version: 2.2.0

cpe:2.3:a:mattermost:mattermost_server:2.2.0
Mattermost » Mattermost Server » Version: 3.0.0

cpe:2.3:a:mattermost:mattermost_server:3.0.0
Mattermost » Mattermost Server » Version: 3.0.1

cpe:2.3:a:mattermost:mattermost_server:3.0.1
Mattermost » Mattermost Server » Version: 3.0.2

cpe:2.3:a:mattermost:mattermost_server:3.0.2
Mattermost » Mattermost Server » Version: 3.0.3

cpe:2.3:a:mattermost:mattermost_server:3.0.3
Mattermost » Mattermost Server » Version: 3.1.0

cpe:2.3:a:mattermost:mattermost_server:3.1.0
Mattermost » Mattermost Server » Version: 3.10.0

cpe:2.3:a:mattermost:mattermost_server:3.10.0
Mattermost » Mattermost Server » Version: 3.10.1

cpe:2.3:a:mattermost:mattermost_server:3.10.1
Mattermost » Mattermost Server » Version: 3.10.2

cpe:2.3:a:mattermost:mattermost_server:3.10.2
Mattermost » Mattermost Server » Version: 3.10.3

cpe:2.3:a:mattermost:mattermost_server:3.10.3
Mattermost » Mattermost Server » Version: 3.2.0

cpe:2.3:a:mattermost:mattermost_server:3.2.0
Mattermost » Mattermost Server » Version: 3.3.0

cpe:2.3:a:mattermost:mattermost_server:3.3.0
Mattermost » Mattermost Server » Version: 3.4.0

cpe:2.3:a:mattermost:mattermost_server:3.4.0
Mattermost » Mattermost Server » Version: 3.5.0

cpe:2.3:a:mattermost:mattermost_server:3.5.0
Mattermost » Mattermost Server » Version: 3.5.1

cpe:2.3:a:mattermost:mattermost_server:3.5.1
Mattermost » Mattermost Server » Version: 3.5.2

cpe:2.3:a:mattermost:mattermost_server:3.5.2
Mattermost » Mattermost Server » Version: 3.5.3

cpe:2.3:a:mattermost:mattermost_server:3.5.3
Mattermost » Mattermost Server » Version: 3.6.0

cpe:2.3:a:mattermost:mattermost_server:3.6.0
Mattermost » Mattermost Server » Version: 3.6.1

cpe:2.3:a:mattermost:mattermost_server:3.6.1
Mattermost » Mattermost Server » Version: 3.6.2

cpe:2.3:a:mattermost:mattermost_server:3.6.2
Mattermost » Mattermost Server » Version: 3.6.3

cpe:2.3:a:mattermost:mattermost_server:3.6.3
Mattermost » Mattermost Server » Version: 3.6.4

cpe:2.3:a:mattermost:mattermost_server:3.6.4
Mattermost » Mattermost Server » Version: 3.6.5

cpe:2.3:a:mattermost:mattermost_server:3.6.5
Mattermost » Mattermost Server » Version: 3.6.6

cpe:2.3:a:mattermost:mattermost_server:3.6.6
Mattermost » Mattermost Server » Version: 3.6.7

cpe:2.3:a:mattermost:mattermost_server:3.6.7
Mattermost » Mattermost Server » Version: 3.7.0

cpe:2.3:a:mattermost:mattermost_server:3.7.0
Mattermost » Mattermost Server » Version: 3.7.1

cpe:2.3:a:mattermost:mattermost_server:3.7.1
Mattermost » Mattermost Server » Version: 3.7.2

cpe:2.3:a:mattermost:mattermost_server:3.7.2
Mattermost » Mattermost Server » Version: 3.7.3

cpe:2.3:a:mattermost:mattermost_server:3.7.3
Mattermost » Mattermost Server » Version: 3.7.4

cpe:2.3:a:mattermost:mattermost_server:3.7.4
Mattermost » Mattermost Server » Version: 3.7.5

cpe:2.3:a:mattermost:mattermost_server:3.7.5
Mattermost » Mattermost Server » Version: 3.7.6

cpe:2.3:a:mattermost:mattermost_server:3.7.6
Mattermost » Mattermost Server » Version: 3.8.0

cpe:2.3:a:mattermost:mattermost_server:3.8.0
Mattermost » Mattermost Server » Version: 3.8.1

cpe:2.3:a:mattermost:mattermost_server:3.8.1
Mattermost » Mattermost Server » Version: 3.8.2

cpe:2.3:a:mattermost:mattermost_server:3.8.2
Mattermost » Mattermost Server » Version: 3.8.3

cpe:2.3:a:mattermost:mattermost_server:3.8.3
Mattermost » Mattermost Server » Version: 3.9.0

cpe:2.3:a:mattermost:mattermost_server:3.9.0
Mattermost » Mattermost Server » Version: 3.9.1

cpe:2.3:a:mattermost:mattermost_server:3.9.1
Mattermost » Mattermost Server » Version: 3.9.2

cpe:2.3:a:mattermost:mattermost_server:3.9.2
Mattermost » Mattermost Server » Version: 4.0.0

cpe:2.3:a:mattermost:mattermost_server:4.0.0
Mattermost » Mattermost Server » Version: 4.0.1

cpe:2.3:a:mattermost:mattermost_server:4.0.1
Mattermost » Mattermost Server » Version: 4.0.2

cpe:2.3:a:mattermost:mattermost_server:4.0.2
Mattermost » Mattermost Server » Version: 4.0.3

cpe:2.3:a:mattermost:mattermost_server:4.0.3
Mattermost » Mattermost Server » Version: 4.0.4

cpe:2.3:a:mattermost:mattermost_server:4.0.4
Mattermost » Mattermost Server » Version: 4.0.5

cpe:2.3:a:mattermost:mattermost_server:4.0.5
Mattermost » Mattermost Server » Version: 4.1.0

cpe:2.3:a:mattermost:mattermost_server:4.1.0
Mattermost » Mattermost Server » Version: 4.1.1

cpe:2.3:a:mattermost:mattermost_server:4.1.1
Mattermost » Mattermost Server » Version: 4.1.2

cpe:2.3:a:mattermost:mattermost_server:4.1.2
Mattermost » Mattermost Server » Version: 4.10.0

cpe:2.3:a:mattermost:mattermost_server:4.10.0
Mattermost » Mattermost Server » Version: 4.10.1

cpe:2.3:a:mattermost:mattermost_server:4.10.1
Mattermost » Mattermost Server » Version: 4.10.10

cpe:2.3:a:mattermost:mattermost_server:4.10.10
Mattermost » Mattermost Server » Version: 4.10.2

cpe:2.3:a:mattermost:mattermost_server:4.10.2
Mattermost » Mattermost Server » Version: 4.10.3

cpe:2.3:a:mattermost:mattermost_server:4.10.3
Mattermost » Mattermost Server » Version: 4.10.4

cpe:2.3:a:mattermost:mattermost_server:4.10.4
Mattermost » Mattermost Server » Version: 4.10.5

cpe:2.3:a:mattermost:mattermost_server:4.10.5
Mattermost » Mattermost Server » Version: 4.10.6

cpe:2.3:a:mattermost:mattermost_server:4.10.6
Mattermost » Mattermost Server » Version: 4.10.7

cpe:2.3:a:mattermost:mattermost_server:4.10.7
Mattermost » Mattermost Server » Version: 4.10.8

cpe:2.3:a:mattermost:mattermost_server:4.10.8
Mattermost » Mattermost Server » Version: 4.10.9

cpe:2.3:a:mattermost:mattermost_server:4.10.9
Mattermost » Mattermost Server » Version: 4.2.0

cpe:2.3:a:mattermost:mattermost_server:4.2.0
Mattermost » Mattermost Server » Version: 4.2.1

cpe:2.3:a:mattermost:mattermost_server:4.2.1
Mattermost » Mattermost Server » Version: 4.2.2

cpe:2.3:a:mattermost:mattermost_server:4.2.2
Mattermost » Mattermost Server » Version: 4.3.0

cpe:2.3:a:mattermost:mattermost_server:4.3.0
Mattermost » Mattermost Server » Version: 4.3.1

cpe:2.3:a:mattermost:mattermost_server:4.3.1
Mattermost » Mattermost Server » Version: 4.3.2

cpe:2.3:a:mattermost:mattermost_server:4.3.2
Mattermost » Mattermost Server » Version: 4.3.3

cpe:2.3:a:mattermost:mattermost_server:4.3.3
Mattermost » Mattermost Server » Version: 4.3.4

cpe:2.3:a:mattermost:mattermost_server:4.3.4
Mattermost » Mattermost Server » Version: 4.4.0

cpe:2.3:a:mattermost:mattermost_server:4.4.0
Mattermost » Mattermost Server » Version: 4.4.1

cpe:2.3:a:mattermost:mattermost_server:4.4.1
Mattermost » Mattermost Server » Version: 4.4.2

cpe:2.3:a:mattermost:mattermost_server:4.4.2
Mattermost » Mattermost Server » Version: 4.4.3

cpe:2.3:a:mattermost:mattermost_server:4.4.3
Mattermost » Mattermost Server » Version: 4.4.4

cpe:2.3:a:mattermost:mattermost_server:4.4.4
Mattermost » Mattermost Server » Version: 4.4.5

cpe:2.3:a:mattermost:mattermost_server:4.4.5
Mattermost » Mattermost Server » Version: 4.5.0

cpe:2.3:a:mattermost:mattermost_server:4.5.0
Mattermost » Mattermost Server » Version: 4.5.1

cpe:2.3:a:mattermost:mattermost_server:4.5.1
Mattermost » Mattermost Server » Version: 4.5.2

cpe:2.3:a:mattermost:mattermost_server:4.5.2
Mattermost » Mattermost Server » Version: 4.6.0

cpe:2.3:a:mattermost:mattermost_server:4.6.0
Mattermost » Mattermost Server » Version: 4.6.1

cpe:2.3:a:mattermost:mattermost_server:4.6.1
Mattermost » Mattermost Server » Version: 4.6.2

cpe:2.3:a:mattermost:mattermost_server:4.6.2
Mattermost » Mattermost Server » Version: 4.6.3

cpe:2.3:a:mattermost:mattermost_server:4.6.3
Mattermost » Mattermost Server » Version: 4.7.0

cpe:2.3:a:mattermost:mattermost_server:4.7.0
Mattermost » Mattermost Server » Version: 4.7.1

cpe:2.3:a:mattermost:mattermost_server:4.7.1
Mattermost » Mattermost Server » Version: 4.7.2

cpe:2.3:a:mattermost:mattermost_server:4.7.2
Mattermost » Mattermost Server » Version: 4.7.3

cpe:2.3:a:mattermost:mattermost_server:4.7.3
Mattermost » Mattermost Server » Version: 4.7.4

cpe:2.3:a:mattermost:mattermost_server:4.7.4
Mattermost » Mattermost Server » Version: 4.8.0

cpe:2.3:a:mattermost:mattermost_server:4.8.0
Mattermost » Mattermost Server » Version: 4.8.1

cpe:2.3:a:mattermost:mattermost_server:4.8.1
Mattermost » Mattermost Server » Version: 4.8.2

cpe:2.3:a:mattermost:mattermost_server:4.8.2
Mattermost » Mattermost Server » Version: 4.9.0

cpe:2.3:a:mattermost:mattermost_server:4.9.0
Mattermost » Mattermost Server » Version: 4.9.1

cpe:2.3:a:mattermost:mattermost_server:4.9.1
Mattermost » Mattermost Server » Version: 4.9.2

cpe:2.3:a:mattermost:mattermost_server:4.9.2
Mattermost » Mattermost Server » Version: 4.9.3

cpe:2.3:a:mattermost:mattermost_server:4.9.3
Mattermost » Mattermost Server » Version: 4.9.4

cpe:2.3:a:mattermost:mattermost_server:4.9.4
Mattermost » Mattermost Server » Version: 5.0.0

cpe:2.3:a:mattermost:mattermost_server:5.0.0
Mattermost » Mattermost Server » Version: 5.0.1

cpe:2.3:a:mattermost:mattermost_server:5.0.1
Mattermost » Mattermost Server » Version: 5.0.2

cpe:2.3:a:mattermost:mattermost_server:5.0.2
Mattermost » Mattermost Server » Version: 5.0.3

cpe:2.3:a:mattermost:mattermost_server:5.0.3
Mattermost » Mattermost Server » Version: 5.1.0

cpe:2.3:a:mattermost:mattermost_server:5.1.0
Mattermost » Mattermost Server » Version: 5.1.1

cpe:2.3:a:mattermost:mattermost_server:5.1.1
Mattermost » Mattermost Server » Version: 5.1.2

cpe:2.3:a:mattermost:mattermost_server:5.1.2
Mattermost » Mattermost Server » Version: 5.10.0

cpe:2.3:a:mattermost:mattermost_server:5.10.0
Mattermost » Mattermost Server » Version: 5.10.1

cpe:2.3:a:mattermost:mattermost_server:5.10.1
Mattermost » Mattermost Server » Version: 5.10.2

cpe:2.3:a:mattermost:mattermost_server:5.10.2
Mattermost » Mattermost Server » Version: 5.11.0

cpe:2.3:a:mattermost:mattermost_server:5.11.0
Mattermost » Mattermost Server » Version: 5.11.1

cpe:2.3:a:mattermost:mattermost_server:5.11.1
Mattermost » Mattermost Server » Version: 5.2.0

cpe:2.3:a:mattermost:mattermost_server:5.2.0
Mattermost » Mattermost Server » Version: 5.2.1

cpe:2.3:a:mattermost:mattermost_server:5.2.1
Mattermost » Mattermost Server » Version: 5.2.2

cpe:2.3:a:mattermost:mattermost_server:5.2.2
Mattermost » Mattermost Server » Version: 5.3.0

cpe:2.3:a:mattermost:mattermost_server:5.3.0
Mattermost » Mattermost Server » Version: 5.3.1

cpe:2.3:a:mattermost:mattermost_server:5.3.1
Mattermost » Mattermost Server » Version: 5.4.0

cpe:2.3:a:mattermost:mattermost_server:5.4.0
Mattermost » Mattermost Server » Version: 5.5.0

cpe:2.3:a:mattermost:mattermost_server:5.5.0
Mattermost » Mattermost Server » Version: 5.5.1

cpe:2.3:a:mattermost:mattermost_server:5.5.1
Mattermost » Mattermost Server » Version: 5.5.2

cpe:2.3:a:mattermost:mattermost_server:5.5.2
Mattermost » Mattermost Server » Version: 5.5.3

cpe:2.3:a:mattermost:mattermost_server:5.5.3
Mattermost » Mattermost Server » Version: 5.6.0

cpe:2.3:a:mattermost:mattermost_server:5.6.0
Mattermost » Mattermost Server » Version: 5.6.1

cpe:2.3:a:mattermost:mattermost_server:5.6.1
Mattermost » Mattermost Server » Version: 5.6.2

cpe:2.3:a:mattermost:mattermost_server:5.6.2
Mattermost » Mattermost Server » Version: 5.6.3

cpe:2.3:a:mattermost:mattermost_server:5.6.3
Mattermost » Mattermost Server » Version: 5.6.4

cpe:2.3:a:mattermost:mattermost_server:5.6.4
Mattermost » Mattermost Server » Version: 5.6.5

cpe:2.3:a:mattermost:mattermost_server:5.6.5
Mattermost » Mattermost Server » Version: 5.7.0

cpe:2.3:a:mattermost:mattermost_server:5.7.0
Mattermost » Mattermost Server » Version: 5.7.1

cpe:2.3:a:mattermost:mattermost_server:5.7.1
Mattermost » Mattermost Server » Version: 5.7.2

cpe:2.3:a:mattermost:mattermost_server:5.7.2
Mattermost » Mattermost Server » Version: 5.7.3

cpe:2.3:a:mattermost:mattermost_server:5.7.3
Mattermost » Mattermost Server » Version: 5.8.0

cpe:2.3:a:mattermost:mattermost_server:5.8.0
Mattermost » Mattermost Server » Version: 5.8.1

cpe:2.3:a:mattermost:mattermost_server:5.8.1
Mattermost » Mattermost Server » Version: 5.8.2

cpe:2.3:a:mattermost:mattermost_server:5.8.2
Mattermost » Mattermost Server » Version: 5.9.0

cpe:2.3:a:mattermost:mattermost_server:5.9.0
Mattermost » Mattermost Server » Version: 5.9.1

cpe:2.3:a:mattermost:mattermost_server:5.9.1
Mattermost » Mattermost Server » Version: 5.9.2

cpe:2.3:a:mattermost:mattermost_server:5.9.2
Mattermost » Mattermost Server » Version: 5.9.3

cpe:2.3:a:mattermost:mattermost_server:5.9.3
Mattermost » Mattermost Server » Version: 5.9.4

cpe:2.3:a:mattermost:mattermost_server:5.9.4
Mattermost » Mattermost Server » Version: 5.9.5

cpe:2.3:a:mattermost:mattermost_server:5.9.5
Mattermost » Mattermost Server » Version: 5.9.6

cpe:2.3:a:mattermost:mattermost_server:5.9.6
Mattermost » Mattermost Server » Version: 5.9.7

cpe:2.3:a:mattermost:mattermost_server:5.9.7
Mattermost » Mattermost Server » Version: 5.9.8

cpe:2.3:a:mattermost:mattermost_server:5.9.8

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2019-20866

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