VULNERABILITY INTELLIGENCE

CVE-2018-21255

CVSS score4.3 MEDIUM
EPSS probability0.58%
CISA KEVNot currently listed
Published2020-06-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

An issue was discovered in Mattermost Server before 5.1. Non-members of a channel could use the Channel PATCH API to modify that channel.

Weakness classification

  • CWE-732: Incorrect Permission Assignment for Critical Resource

Primary references