AI Engine – The Chatbot, AI Framework & MCP for WordPress: Privilege escalation or authentication bypass
AI Engine – The Chatbot, AI Framework & MCP for WordPress is affected by privilege escalation or authentication bypass. Exposure depends on how the affected operation is made reachable by the site. A successful request can grant permissions or access that the caller should not possess. The published affected range is 3.4.9.
- Component
- AI Engine – The Chatbot, AI Framework & MCP for WordPress
- Affected
- 3.4.9
- Safe version
- See mitigation notes
- Published
- May 17, 2026
This CVE was published May 17, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update AI Engine – The Chatbot, AI Framework & MCP for WordPress to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Privilege Escalation in version 3.4.9. This is due to missing WordPress capability enforcement in the MCP OAuth bearer-token authorization path, where any valid OAuth token causes MCP access to be granted without verifying administrator privileges. This makes it possible for authenticated (Subscriber+) attackers to invoke admin-level MCP tools and escalate privileges to Administrator.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H