VULNERABILITY INTELLIGENCE

CVE-2023-2787

CVSS score6.5 MEDIUM
EPSS probability0.54%
CISA KEVNot currently listed
Published2023-06-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.

Weakness classification

  • CWE-862: Missing Authorization

Primary references