Unrated
Royal MCP < 1.5.7 - Authentication Bypass via Preview Link Token
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.
Announced Group revision 1
Original source ↗CVE-2026-111958
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111958
Royal MCP
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "Royal MCP",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.5.7",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111958
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #50222 · Revision 1
- Added to Heist Feed
- Publisher date