Auth bypass in Royal Mcp

CVE-2026-111961

The Royal MCP WordPress plugin before 1.5.10 does not perform an object-level permission check before duplicating a requested page, relying on a generic capability, which allows users with contributor-level access to read the full content of any private or draft page and to publish it without holding the publish capability.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (4.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Royal Mcp

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-111961?
CVE-2026-111961 is a low-severity vulnerability in Royal Mcp, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 3.8/10. Published 2026-10-28.
How severe is CVE-2026-111961?
Low severity. CVSS v3 base score is 3.8 out of 10.