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MattermostCVELIST:CVE-2023-3613

HistoryJul 17, 2023 - 3:31 p.m.

CVE-2023-3613 Guest accounts invited and added to channels by Welcomebot plugin

2023-07-1715:31:23

CWE-863

Mattermost

www.cve.org

mattermost

welcomebot

plugin

membership status

guest accounts

channels

3.5 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.2 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

18.1%

JSON

Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.

CNA Affected

[
  {
    "defaultStatus": "affected",
    "product": "Mattermost Plugins",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "7.8.5",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "7.10.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "7.8.6"
      },
      {
        "status": "unaffected",
        "version": "7.10.3"
      }
    ]
  }
]

References

mattermost.com/security-updates

3.5 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.2 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

18.1%

JSON

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