VULNERABILITY INTELLIGENCE

CVE-2023-1775

CVSS score4.3 MEDIUM
EPSS probability0.55%
CISA KEVNot currently listed
Published2023-03-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-200
  • nvd@nist.gov: CWE-668

Primary references