The Ultimate Member WordPress plugin before 2.13.0 does not validate a submitted role selection when it cannot resolve the set of roles a profile form permits, and screens the value against the site's registered role names rather than against the form's own allow-list, allowing unauthenticated users who register through the Ultimate Member WordPress plugin before 2.13.0's own form to grant themselves arbitrary capabilities and reach administrator-equivalent access.

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Fixes

Solution

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Workaround

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History

Fri, 28 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

Fri, 28 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
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, 28 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Ultimatemember
Ultimatemember ultimate Member
Wordpress
Wordpress wordpress
Weaknesses CWE-269
CWE-285
Vendors & Products Ultimatemember
Ultimatemember ultimate Member
Wordpress
Wordpress wordpress

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description The Ultimate Member WordPress plugin before 2.13.0 does not validate a submitted role selection when it cannot resolve the set of roles a profile form permits, and screens the value against the site's registered role names rather than against the form's own allow-list, allowing unauthenticated users who register through the Ultimate Member WordPress plugin before 2.13.0's own form to grant themselves arbitrary capabilities and reach administrator-equivalent access.
Title Ultimate Member 2.6.7 - 2.12.1 - Unauthenticated Privilege Escalation via Role Field on Profile Forms
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-28T13:03:20.842Z

Reserved: 2026-08-10T11:01:48.677Z

Link: CVE-2026-19423

cve-icon Vulnrichment

Updated: 2026-08-28T12:57:57.813Z

cve-icon NVD

Status : Deferred

Published: 2026-08-28T08:16:40.610

Modified: 2026-08-28T18:43:25.883

Link: CVE-2026-19423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T17:30:08Z

Weaknesses