CVE-2019-20883

4.3 mediumEPSS 0.6%

Medium (4.3) in mattermost mattermost server. EPSS 0.6% chance of exploitation in the next 30 days.

An issue was discovered in Mattermost Server before 5.8.0, when Town Square is set to Read-Only. Users can pin or unpin a post.

Severity

4.3 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
Published: 2020-06-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19