CVE-2019-20847: An issue was discovered in Mattermost Server before 5.18.0. An attacker can send a user_typing WebSocket event to any channel.

PriorityP424medium5.3CVSS 3.1

AVNACLPRNUINSUCNILAN

EPSS

0.81%

53.2th percentile

An issue was discovered in Mattermost Server before 5.18.0. An attacker can send a user_typing WebSocket event to any channel.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost_server	< 5.18.0	5.18.0
the_openjpeg_project	openjpeg2	>= 0 < 2.1.2-1.1+deb9u5build0.16.04.1	2.1.2-1.1+deb9u5build0.16.04.1

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N

osv7.5HIGH

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