{"id":"CVE-2026-12251","aliases":["EUVD-2026-51430","GHSA-x3gc-pq2r-3884"],"status":"published","title":"Ultimate Member \u003c 2.12.1 - Unauthenticated Privilege Escalation via Role Selection Field","description":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00383,"percentile":0.32845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2026-07-31T06:00:10Z","modified":"2026-08-26T16:31:36Z","products":[{"vendor":"ultimate member","product":"ultimate member"},{"vendor":"unknown","product":"ultimate member"}],"references":[{"url":"https://wpscan.com/vulnerability/dd394110-cf3c-4158-8b50-7abb8a23a2be/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12251"},{"url":"https://wpscan.com/vulnerability/dd394110-cf3c-4158-8b50-7abb8a23a2be"},{"url":"https://github.com/advisories/GHSA-x3gc-pq2r-3884"}],"sources":{"cve":[{"id":"CVE-2026-12251","title":"Ultimate Member \u003c 2.12.1 - Unauthenticated Privilege Escalation via Role Selection Field","description":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.","status":"published","published":"2026-07-31T06:00:10.354Z","modified":"2026-07-31T16:55:03.841Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-51430","description":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.","status":"published","published":"2026-07-31T06:00:10Z","modified":"2026-07-31T16:55:03Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:25.522444Z"}],"ghsa":[{"id":"GHSA-x3gc-pq2r-3884","title":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level...","description":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.","status":"published","published":"2026-07-31T09:31:16Z","modified":"2026-07-31T18:33:20Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:10:00.305317Z"}],"nvd":[{"id":"CVE-2026-12251","description":"The Ultimate Member  WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.","status":"published","published":"2026-07-31T07:16:23.24Z","modified":"2026-08-26T16:31:36.75Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:33.955581Z"}]}}