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

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History

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

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-28T06:00:16.618Z

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

Link: CVE-2026-19423

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-19423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses

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