CVE-2019-20886

HIGH

Mattermost Server < 5.8.0 - Improper Privilege Management

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 5.8.0. The first user is sometimes inadvertently a system admin.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://mattermost.com/security-updates/

Scores

CVSS v3 7.5
EPSS 0.0019
EPSS Percentile 41.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-269
Status published
Products (1)
mattermost/mattermost_server < 5.8.0
Published Jun 19, 2020
Tracked Since Feb 18, 2026