CVE-2026-103694: Unknown Mobile Builder

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The Mobile builder WordPress plugin through 1.4.2 does not properly restrict which user meta keys a logged-in user can update through one of its REST routes, allowing any user with a self-registered account, such as a customer, to grant themselves the administrator role.

Affected products

• Unknown Mobile Builder: up to and including 1.4.2

Published 2026-10-11. Last modified 2026-10-13.