CVE-2023-49809

2023-12-1209:15:09

CWE-400

[email protected]

web.nvd.nist.gov

mattermost

/add endpoint

vulnerability

cve-2023-49809

null request body

plugin crash

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

13.5%

JSON

Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.

Affected configurations

NVD

Node

mattermostmattermost_serverRange≤8.1.5

mattermostmattermost_serverRange9.0.0–9.1.0

CPENameOperatorVersion
mattermost:mattermost_servermattermost mattermost serverle8.1.5
mattermost:mattermost_servermattermost mattermost serverle9.1.0

CPE	Name	Operator	Version
mattermost:mattermost_server	mattermost mattermost server	le	8.1.5
mattermost:mattermost_server	mattermost mattermost server	le	9.1.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "8.1.5",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "8.1.6"
      },
      {
        "status": "unaffected",
        "version": "9.2.0"
      }
    ]
  }
]