CVE-2026-19423

Ultimate Member 2.6.7 - 2.12.1 - Unauthenticated Privilege Escalation via Role Field on Profile Forms

State
Published
Severity
8.1 High
Published
Aug 28, 2026
Updated
Aug 28, 2026
Reserved
Aug 10, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

  • CWE-269 Improper Privilege Management

Affected Products

ProductVersions
Ultimate MemberUnknown
  • 2.6.7 to before 2.13.0Affected

References

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