CVE-2026-19423

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.

CVSS v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.28% chance of exploitation in the next 30 days, 20th percentile

Published

2026-08-28

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/3cdc8700-165a-4787-a3d0-b0914865b07b/

References

• CVE Record
• NVD entry

Related

• CVE-2026-19417
• CVE-2026-19430
• CVE-2026-19416
• CVE-2026-19435
• CVE-2026-19406
• CVE-2026-19454