CVE-2026-111958: high-severity vulnerability in Royal MCP
Royal MCP < 1.5.7 - Authentication Bypass via Preview Link Token
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.5epss 0.2%
exploitation probability
0.2%top 84% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · Royal MCPpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/014f061c-54f3-491e-b4a0-85cfa6fb178b/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Royal MCP
In the same product, most dangerous first.
CVE-2026-10750HIGHRoyal MCP < 1.4.26 - Subscriber+ Insufficient Authorization in MCP ToolsEPSS 0.4%CVE-2026-111960MEDIUMRoyal MCP 1.4.38 - 1.5.9 - Subscriber+ Non-Public Post Disclosure via wp_search AbilityEPSS 0.2%CVE-2026-111961LOWRoyal MCP < 1.5.10 - Contributor+ Private and Draft Content Disclosure and publish_posts Bypass via elementor_clone_pageEPSS 0.2%