The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.2.2 does not sanitize and escape Client IDs, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Wp_oauth_server | Wp-oauth | * | 4.2.2 (excluding) |