CVE-2023-2193

Oauth authorization codes do not expire when deauthorizing an oauth2 app

Published Apr 20, 2023 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.

Remediation

Vendor Solution

Update Mattermost to version v7.10, v7.9.3, v7.8.4, v7.7.5, v7.1.9 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-33708 Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.
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, 11:04 PM
Reserved
Apr 20, 2023, 8:16 AM
Status
Modified
Published
Apr 20, 2023, 9:15 AM
Modified
Jun 17, 2026, 5:51 AM