CVE-2023-2793

2023-06-1610:15:09

CWE-400

[email protected]

web.nvd.nist.gov

mattermost

cve-2023-2793

denial-of-service

security vulnerability

nvd

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

0.001 Low

EPSS

Percentile

32.7%

JSON

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

Affected configurations

NVD

Node

mattermostmattermostRange7.8.0–7.8.3

mattermostmattermostRange7.9.0–7.9.2

mattermostmattermostMatch7.10.0

CPENameOperatorVersion
mattermost:mattermostmattermostle7.8.3
mattermost:mattermostmattermostle7.9.2
mattermost:mattermostmattermosteq7.10.0

CPE	Name	Operator	Version
mattermost:mattermost	mattermost	le	7.8.3
mattermost:mattermost	mattermost	le	7.9.2
mattermost:mattermost	mattermost	eq	7.10.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "7.8.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "7.9.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "7.10.1"
      },
      {
        "status": "unaffected",
        "version": "7.8.3"
      },
      {
        "status": "unaffected",
        "version": "7.9.2"
      },
      {
        "status": "affected",
        "version": "7.10.0"
      }
    ]
  }
]