AI Engine <= 3.6.5 - Cross-Site Request Forgery to Privilege Escalation via REQUEST_URI Substring Match

8.8
Cross-Site Request Forgery (CSRF)
CVE CVE-2026-15988
CVSS 8.8 (High)
Publicly Published July 31, 2026
Last Updated August 1, 2026
Researcher UKO - Korea univ.

Description

The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.6.5 This is due to missing or incorrect nonce validation on the reauth_for_authorize function. This makes it possible for unauthenticated attackers to create new administrator accounts with attacker-supplied credentials via a CSRF-based REST authentication bypass, granted they can trick a site administrator into performing an action such as clicking on a link. This bypass can be combined with WordPress's ?_method=POST method-override support to convert a top-navigation GET request into an authenticated POST to the REST users endpoint, requiring no existing account on the attacker's part.

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Vulnerability Details for AI Engine – The Chatbot, AI Framework & MCP for WordPress

Software Type Plugin
Software Slug ai-engine (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.6.6, or a newer patched version
Affected Version
  • <= 3.6.5
Patched Version
  • 3.6.6

Recent vulnerabilities in AI Engine – The Chatbot, AI Framework & MCP for WordPress

# Title CVE ID CVSS Researchers Date
1 AI Engine – The Chatbot, AI Framework & MCP for WordPress 3.4.0 - 3.7.1 - Missing Authorization to Unauthenticated Arbitrary AI Query Execution CVE-2026-75798 5.3 Abdullah Kareem August 28, 2026
2 AI Engine – The Chatbot, AI Framework & MCP for WordPress 3.3.3 - 3.7.1 - Authenticated (Subscriber+) Arbitrary File Read CVE-2026-75797 6.5 Jashid Sany August 27, 2026
3 AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.6.0 - Authenticated (Administrator+) Privilege Escalation CVE-2026-75796 4.7 Charles Vosburgh August 24, 2026
4 AI Engine <= 3.6.5 - Authenticated (Subscriber+) Arbitrary File Read CVE-2026-16955 6.5 Revanth Hari Narayana Matte August 3, 2026
5 AI Engine <= 3.6.3 - Insecure Direct Object Reference to Unauthenticated Cross-Session Chatbot File Deletion CVE-2026-16953 5.3 Revanth Hari Narayana Matte August 3, 2026
6 AI Engine <= 3.6.3 - Authenticated (Editor+) Information Exposure CVE-2026-16954 2.7 Revanth Hari Narayana Matte July 30, 2026
7 AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting CVE-2026-65545 7.2 daroo July 28, 2026
8 AI Engine <= 3.5.4 - Authenticated (Subscriber+) Insecure Direct Object Reference to Chatbot Discussion Disclosure CVE-2026-12510 4.3 Shivamani Vastrala June 25, 2026
9 AI Engine <= 3.5.4 - Authenticated (Editor+) Arbitrary File Write CVE-2026-12511 7.2 Meher Sudhakar Abbireddi June 23, 2026
10 AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.4.9 - Authenticated (Editor+) Privilege Escalation CVE-2026-27407 7.2 Phat RiO May 28, 2026

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