CVE-2023-2788

Deactivated user can retain access using oauth2 api

Published Jun 16, 2023 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.

Remediation

Vendor Solution

Update Mattermost to version 7.1.10, 7.8.5, 7.9.4, 7.10.1 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-34244 Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.
References
History
Type Values Removed Values Added
Metrics ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 6, 2024, 11:00 PM
Reserved
May 18, 2023, 11:58 AM
Status
Modified
Published
Jun 16, 2023, 9:15 AM
Modified
Jun 17, 2026, 5:53 AM