CVE-2024-29221 Invite ID available to team admins even without the "Add Members" permission

2024-04-0508:15:07

CWE-284

Mattermost

www.cve.org

cve-2024-29221

access control

mattermost server

endpoint

team admins

invite id

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Improper Access Control in Mattermost Server versions 9.5.x before 9.5.2, 9.4.x before 9.4.4, 9.3.x before 9.3.3, 8.1.x before 8.1.11 lacked proper access control in the /api/v4/users/me/teams endpoint allowing a team admin to get the invite ID of their team, thus allowing them to invite users, even if the “Add Members” permission was explicitly removed from team admins.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "9.5.1",
        "status": "affected",
        "version": "9.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.4.3",
        "status": "affected",
        "version": "9.4.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.3.2",
        "status": "affected",
        "version": "9.3.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "8.1.10",
        "status": "affected",
        "version": "8.1.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "9.6.0"
      },
      {
        "status": "unaffected",
        "version": "9.5.2"
      },
      {
        "status": "unaffected",
        "version": "9.4.4"
      },
      {
        "status": "unaffected",
        "version": "9.3.3"
      },
      {
        "status": "unaffected",
        "version": "8.1.11"
      }
    ]
  }
]