Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.
CVE ID: CVE-2023-2193
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.5
Vendor: Mattermost
Product: Mattermost
EPSS Score: 0.12% (probability of being exploited)
EPSS Percentile: 47.03% (scored less or equal to compared to others)
EPSS Date: 2025-02-03 (when was this score calculated)