CVE-2023-48732

2024-01-0210:15:08

CWE-200

Mattermost

web.nvd.nist.gov

cve-2023-48732

mattermost

websocket

broadcasting

vulnerability

nvd

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

4.3

Confidence

High

EPSS

Percentile

14.0%

JSON

Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.

Affected configurations

Nvd

Node

mattermostmattermost_serverRange<8.1.7

VendorProductVersionCPE
mattermostmattermost_server*cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mattermost	mattermost_server	*	cpe:2.3:a:mattermost:mattermost_server::::::::

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "8.1.6",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "8.1.7"
      }
    ]
  }
]