AI Engine <= 3.8.0 - Unauthenticated Stored Cross-Site Scripting via 'model_' Parameter → PHP Error-Log Injection → Advisor Indirect Prompt Injection
The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.8.0 This is due to a chain of missing input neutralization and output escaping across the /mwai-ui/v1/chats/submit REST endpoint, the PHP error-log parser (MeowKit_MWAI_Helpers::php_error_logs), the Advisor task (Meow_MWAI_Modules_Advisor::run_advisor), and the Advisor dashboard widget (advisor_metabox): the server-parameter denylist in chat_submit strips only exact key names such as 'model' while convert_keys() later canonicalizes 'model_' back to 'model', allowing an unauthenticated caller to place an attacker-controlled string (including CR/LF) into $query->model; final_checks() throws an Exception whose message embeds that raw string, and the non-streaming, non-admin catch branch writes it to the PHP error log unmodified — creating a forged log line that the plugin's own parser subsequently returns as recent PHP-error content; run_advisor() then appends that content verbatim to the AI prompt (indirect prompt injection — CWE-1427), the returned JSON is stored in the mwai_advisor_data option with no schema validation or HTML sanitization, and advisor_metabox() concatenates the resulting 'title' and 'description' values directly into the WordPress dashboard widget without esc_html(), wp_kses(), or equivalent escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the WordPress dashboard.
Betroffene Software
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| Plattform | Paket | Anfällige Versionen | Behoben in |
|---|---|---|---|
| WordPress-Plugin | AI Engine – The Chatbot, AI Framework & MCP for WordPress | <= 3.8.0 | 3.8.1 |
Verweise
- CVSS-Vektor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N- Schwäche (CWE)
CWE-79- Plattform
- WordPress
- Paket
AI Engine – The Chatbot, AI Framework & MCP for WordPress- Veröffentlicht
- 30.09.2026
- Aktualisiert
- 11.10.2026 10:22
Quellen und Lizenzen
Wordfence Intelligence - 910e51da-6ee2-45d5-837b-7fea80f79390 - Wordfence Intelligence
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Schwachstellenhistorie: AI Engine – The Chatbot, AI Framework & MCP for WordPress
Alle veröffentlichten Schwachstellen dieses Pakets (WordPress-Plugin), neueste zuerst. Zeigt, ob es ein einmaliger Ausrutscher ist oder ein Paket, das man im Auge behalten muss.
- Einträge insgesamt
- 37
- Erste → letzte
- 05.2023 09.2026
- Ohne Fix
- 0
- In Angriffen ausgenutzt
- 0
Verteilung nach Schweregrad
- Kritisch 3
- Hoch 13
- Mittel 20
- Niedrig 1
Veröffentlichungen pro Jahr
- 2023: 1
- 2024: 9
- 2025: 9
- 2026: 18
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AI Engine <= 3.8.0 - Unauthenticated Stored Cross-Site Scripting via 'model_' Parameter → PHP Error-Log Injection → Advisor Indirect Prompt Injection dieser Eintrag
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