CVE-2019-20880: An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via…

PriorityP429high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.11%

62.6th percentile

An issue was discovered in Mattermost Server before 5.8.0, 5.7.2, 5.6.5, and 4.10.7. It allows attackers to cause a denial of service (memory consumption) via OpenGraph.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost_server	< 4.10.7	4.10.7
mattermost	mattermost_server	—	—
mattermost	mattermost_server	>= 5.6.0 < 5.6.5	5.6.5
mattermost	mattermost_server	>= 5.7.0 < 5.7.2	5.7.2

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.