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cvelistMattermostCVELIST:CVE-2022-2408
HistoryJul 14, 2022 - 5:25 p.m.

CVE-2022-2408 Guest accounts can list all public channels

2022-07-1417:25:20
CWE-200
Mattermost
www.cve.org
mattermost
guest accounts
channel listing
security vulnerability

4.3 Medium

CVSS3

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

4.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.7%

The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.

CNA Affected

[
  {
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "6.3.8",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "6.4.x"
      },
      {
        "status": "affected",
        "version": "6.7.x 6.7.0"
      },
      {
        "lessThanOrEqual": "6.5.1",
        "status": "affected",
        "version": "6.5.x",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "6.6.1",
        "status": "affected",
        "version": "6.6.x",
        "versionType": "custom"
      }
    ]
  }
]

4.3 Medium

CVSS3

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

4.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.7%

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