cbcvebase.
CVE-2017-18898
published 2020-06-19

CVE-2017-18898: An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows crafted posts that potentially cause a web browser to hang.

PriorityP424medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
1.10%
62.2th percentile
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows crafted posts that potentially cause a web browser to hang.

Affected

9 ranges
VendorProductVersion rangeFixed in
github.commattermost_mattermost-server>= 0 < 4.0.54.0.5
github.commattermost_mattermost-server>= 0 < 4.0.5+incompatible4.0.5+incompatible
github.commattermost_mattermost-server>= 4.1.0 < 4.1.14.1.1
github.commattermost_mattermost-server>= 4.1.0+incompatible < 4.1.1+incompatible4.1.1+incompatible
github.commattermost_mattermost-server>= 4.2.0-rc1 < 4.2.04.2.0
github.commattermost_mattermost-server>= 4.2.0-rc1+incompatible < 4.2.0+incompatible4.2.0+incompatible
mattermostmattermost_server< 4.0.54.0.5
mattermostmattermost_server
mattermostmattermost_server>= 4.1.0 < 4.1.14.1.1

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.