{"id":"CVE-2023-2193","aliases":["EUVD-2023-33708","GHSA-9h27-89mr-2qm2"],"status":"published","title":"Oauth authorization codes do not expire when deauthorizing an oauth2 app","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0059,"percentile":0.48557,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2023-04-20T08:17:04Z","modified":"2026-10-28T02:31:14Z","products":[{"vendor":"mattermost","product":"mattermost"}],"references":[{"url":"https://mattermost.com/security-updates/","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2193","tags":["advisory"]},{"url":"https://mattermost.com/security-updates"},{"url":"https://github.com/advisories/GHSA-9h27-89mr-2qm2"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2193.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-2193","title":"Oauth authorization codes do not expire when deauthorizing an oauth2 app","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.\n","status":"published","published":"2023-04-20T08:17:04.731Z","modified":"2024-12-06T23:04:57.399Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:35:23.645864Z"}],"euvd":[{"id":"EUVD-2023-33708","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.\n","status":"published","published":"2023-04-20T08:17:04Z","modified":"2024-12-06T23:04:57Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:38.652605Z"}],"ghsa":[{"id":"GHSA-9h27-89mr-2qm2","title":"Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app,...","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.\n","status":"published","published":"2023-04-20T09:30:17Z","modified":"2024-04-04T03:36:38Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:56:16.439649Z"}],"nvd":[{"id":"CVE-2023-2193","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.\n","status":"published","published":"2023-04-20T09:15:10.603Z","modified":"2026-06-17T05:51:57.553Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:07:56.683259Z"}],"osv":[{"id":"CVE-2023-2193","title":"Oauth authorization codes do not expire when deauthorizing an oauth2 app","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.\n","status":"published","published":"2023-04-20T08:17:04.731Z","modified":"2026-10-28T02:31:14.384126152Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:44:30.334753Z"}]}}