Vulnerability · Published Aug 28, 2026 · Assigned by WPScan

CVE-2026-19423Ultimate Member 2.6.7 - 2.12.1 - Unauthenticated Privilege Escalation via Role Field on Profile Forms

High 8.1

In plain English

A high-severity privilege mismanagement in Ultimate Member from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 67.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Ultimate Member	2.6.7 – before 2.13.0

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/3cdc8700-165a-4787-a3d0-b0914865b07b/ exploit, vdb-entry, technical-description