CVE-2023-1775CWE-200

Unsanitized events sent over Websocket to regular users in a High Availability environment

Medium · published March 31, 2023

CVSS v3.1
4.3
EPSS
1%
Percentile
45.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00546 · 45.0th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2023-03-31T11:26Z
EPSS history
Timeline
  • 31 MAR 11:26Z
    Unsanitized events sent over Websocket to regular users in a High Availability environment
    cvelistv5