The Royal MCP WordPress plugin before 1.4.26 does not perform capability checks on the majority of its MCP tools after token authentication, allowing authenticated users with a low-privileged role such as Subscriber to read private content, enumerate all users and their roles, and create, modify, or delete content owned by other users.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Royal Mcp Plugin | — | Update royal-mcp plugin to version 1.4.26, or a newer patched version | Oct 30, 2026 | Jun 10, 2026 |
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