CVE-2026-10750 Royal MCP < 1.4.26 - Subscriber+ Insufficient Authorization in MCP Tools
Low-privileged users can read private content and modify other users' data due to missing capability checks in Royal MCP plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10750?
CVE-2026-10750 is a high-severity missing authorization vulnerability in Unknown Royal MCP, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-10750?
How do I fix CVE-2026-10750?
No fix has been published for CVE-2026-10750 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-10750 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10750 exists.
Sources
Also known as GHSA-mggr-4wrj-4f4g.