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.
History

Fri, 31 Jul 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-285

Fri, 31 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 31 Jul 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Ultimatemember
Ultimatemember ultimate Member
Wordpress
Wordpress wordpress
Vendors & Products Ultimatemember
Ultimatemember ultimate Member
Wordpress
Wordpress wordpress

Fri, 31 Jul 2026 06:30:00 +0000

Type Values Removed Values Added
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.
Title Ultimate Member < 2.12.1 - Unauthenticated Privilege Escalation via Role Selection Field
References

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-07-31T16:55:03.841Z

Reserved: 2026-06-15T08:27:12.663Z

Link: CVE-2026-12251

cve-icon Vulnrichment

Updated: 2026-07-31T16:54:43.918Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T19:00:10Z