CVE-2023-1775

MEDIUM

Mattermost - Info Disclosure

Title source: llm

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.

References (1)

[Vendor Advisory] https://mattermost.com/security-updates/

Scores

CVSS v3 4.3

EPSS 0.0024

EPSS Percentile 46.2%

Attack Vector NETWORK

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

Classification

CWE

CWE-200 CWE-668

Status published

Affected Products (5)

mattermost/mattermost_server < 7.1.6

mattermost/mattermost_server

mattermost/mattermost-server < 7.1.6Go

Timeline

Published Mar 31, 2023

Tracked Since Feb 18, 2026