The Ultimate Member WordPress plugin before 2.12.1 does not filter administrator-level capabilities from the roles it makes selectable on its registration forms, and its post-registration safeguard against elevated accounts is disabled by default, allowing unauthenticated users to register with a site-defined role that carries administrator capabilities and gain administrative access, when such a role exists and a role-selection field is present on a published registration form.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ultimate Member Plugin | — | Update ultimate-member plugin to version 2.12.1, or a newer patched version | Aug 17, 2026 | Aug 5, 2026 |
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