CVE-2023-3613

Guest accounts invited and added to channels by Welcomebot plugin

Published Jul 17, 2023 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Update Mattermost to versions 7.8.6, 7.10.3 or higher. Alternatively, update the WelcomeBot plugin to version 1.3.0 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-44262 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.
References
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Oct 21, 2024, 7:39 PM
Reserved
Jul 11, 2023, 8:28 AM
Status
Modified
Published
Jul 17, 2023, 4:15 PM
Modified
Jun 17, 2026, 6:14 AM