CVE-2023-3593

6.5 mediumEPSS 0.6%

Medium (6.5) in mattermost mattermost server. EPSS 0.6% chance of exploitation in the next 30 days.

Mattermost fails to properly validate markdown, allowing an attacker to crash the server via a specially crafted markdown input.

Severity

6.5 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2023-07-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19