{"id":"CVE-2023-49278","summary":"Umbraco CMS brute force exploit can be used to collect valid usernames","details":"Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.","aliases":["GHSA-7x74-h8cw-qhxq"],"modified":"2026-08-12T03:51:19.812027746Z","published":"2023-12-12T19:14:02.789Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-307"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49278.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49278.json"},{"type":"ADVISORY","url":"https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-7x74-h8cw-qhxq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49278"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/umbraco/umbraco-cms","events":[{"introduced":"b8db430615d76521a4394a23f9928dc7c12f87bd"},{"fixed":"365621023a2e12975104de36e1cbec0829d82804"},{"introduced":"e3f4b86f1c28e0ec30a1ad2a079e308af4cbfbf7"},{"fixed":"4a7ad4a562e7f07641d4a33cd246509f4ab59cd8"},{"introduced":"ba724ed97d77b9951a22fe693f9dd3bdd000047c"},{"fixed":"5dfa76600a9bd673888ff7f2a6ac5c87297cb981"}],"database_specific":{"extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.18.10"},{"introduced":"10.0.0"},{"fixed":"10.8.1"},{"introduced":"12.0.0"},{"fixed":"12.3.4"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49278.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}