CVE-2019-20889

5.3 mediumEPSS 0.8%

Medium (5.3) in mattermost mattermost server. EPSS 0.8% chance of exploitation in the next 30 days.

An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It mishandles permissions for user-access token creation.

Severity

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-276
Published: 2020-06-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19