CVE-2019-20887: An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can…

PriorityP420medium4.3CVSS 3.1

AVNACLPRLUINSUCLINAN

EPSS

0.65%

47.5th percentile

An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can receive intra-team posts.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost_server	< 4.10.6	4.10.6
mattermost	mattermost_server	>= 5.5.0 < 5.5.3	5.5.3
mattermost	mattermost_server	>= 5.6.0 < 5.6.4	5.6.4
mattermost	mattermost_server	>= 5.7.0 < 5.7.1	5.7.1

CVSS provenance

nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N

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