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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-111958

Royal MCP < 1.5.7 - Authentication Bypass via Preview Link TokenCVE-2026-111958

Answer in brief

CVE-2026-111958 records a Unknown severity vulnerability in Royal MCP < 1.5.7 - Authentication Bypass via Preview Link Token. The current sources do not mark it as known exploited. The current feed maps Unknown/Royal MCP (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 22, 2026Updated Oct 22, 2026Source checked Oct 22, 2026First seen by HOL Oct 22, 2026Material review Oct 22, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Royal MCP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Royal MCPgeneric>=0 <1.5.71.5.7

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Royal MCP.
  2. 2Review the reported fix. Update Unknown/Royal MCP to 1.5.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 22, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Royal MCP WordPress plugin before 1.5.7 does not limit a preview-link token to the single preview it was issued for, so any party that obtains a valid token is authenticated as the token's owning user, an administrator in the default configuration, across the entire REST API with no nonce, leading to full site takeover.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • NewType Infortech｜NT OneAPP - Authentication BypassAlso CWE-287

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-287
Source
CVE List V5
Source checked
Oct 22, 2026
References
1 linked source
Open source record