CVE-2024-1888 Existing server guests invited to the team by members without "invite_guest" permission

2024-02-2908:08:08

CWE-284

Mattermost

www.cve.org

cve-2024-1888

server

guests

teams

permissions

mattermost

vulnerability

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

4.8

Confidence

High

EPSS

Percentile

9.0%

JSON

Mattermost fails to check the “invite_guest” permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "9.4.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.3.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.2.4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "8.1.8",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "9.5.0"
      },
      {
        "status": "unaffected",
        "version": "9.4.2"
      },
      {
        "status": "unaffected",
        "version": "9.3.1"
      },
      {
        "status": "unaffected",
        "version": "9.2.5"
      },
      {
        "status": "unaffected",
        "version": "8.1.9"
      }
    ]
  }
]