CVE-2018-21254: An issue was discovered in Mattermost Server before 5.1. An attacker can bypass intended access control (for direct-message channel creation) via the Message…

PriorityP421medium4.3CVSS 3.1

AVNACLPRLUINSUCNILAN

EPSS

0.61%

45.9th percentile

An issue was discovered in Mattermost Server before 5.1. An attacker can bypass intended access control (for direct-message channel creation) via the Message slash command.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
mattermost	mattermost_server	< 5.1.0	5.1.0

CVSS provenance

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

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

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.