Vulnerability · Published Oct 22, 2026 · Assigned by WPScan
CVE-2026-111958Royal MCP < 1.5.7 - Authentication Bypass via Preview Link Token
High 7.5
In plain English
A high-severity improper authentication in Royal MCP from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.2%top 83.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/014f061c-54f3-491e-b4a0-85cfa6fb178b/ exploit, vdb-entry, technical-description