CVE-2017-18906: An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when Single Sign-On OAuth2 is used. An attacker could claim somebody else's…

PriorityP342high8.1CVSS 3.1

AVNACLPRLUINSUCHIHAN

EPSS

0.79%

52.5th percentile

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when Single Sign-On OAuth2 is used. An attacker could claim somebody else's account.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 0 < 3.9.2-0.20170714134023-b17fca0d5ee7	3.9.2-0.20170714134023-b17fca0d5ee7
github.com	mattermost_mattermost-server	>= 3.10.0 < 3.10.2	3.10.2
github.com	mattermost_mattermost-server	>= 3.10.0+incompatible < 3.10.2+incompatible	3.10.2+incompatible
mattermost	mattermost_server	< 3.9.2	3.9.2
mattermost	mattermost_server	>= 3.10.0 < 3.10.2	3.10.2

CVSS provenance

nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

nvdv2.04.9MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:N

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