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Review reviewHigh

CVE-2026-54842

Royal Plugins Royal MCP

Missing Authorization vulnerability in Royal Plugins Royal MCP allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Royal MCP: from n/a through 1.4.25.

CVSS
8.1
EPSS
0.19%
9.52% percentile
CISA KEV
Not listed
Published
2026.06.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.19%
Technical severityCVSS 8.1

Vulnerability overview

Missing Authorization vulnerability in Royal Plugins Royal MCP allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Royal MCP: from n/a through 1.4.25.

Affected product and versions

Product
Royal Plugins Royal MCP
Affected versions
See the vendor advisory and NVD configuration data
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Royal Plugins Royal MCP and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
CWE-862
CVE-2026-54842 — Royal Plugins Royal MCP | SECUFOCUS NOW