WordPress Royal MCP plugin <= 1.4.25 - Broken Access Control vulnerability

published 2026-06-25 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-39387

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Royal Plugins Royal MCP 1.4.26

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 4 mo ago (2026-06-25)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

Royal Plugins Royal MCP

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/royal-mcp/vulnerability/wordpress-royal-mcp-plugin-1-4-25-broken-access-control-vul
vdb-entry

Sources

CVE List CVE-2026-54842
NVD CVE-2026-54842

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary