ISC2 Exam CAP Topic 6 Question 81 Discussion

In the screenshot below, an attacker is attempting to exploit which vulnerability?

POST /upload.php HTTP/1.1

Host: example.com

Cookie: session=xyz123;JSESSIONID=abc123

User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) rv:107.0

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8

Accept-Language: en-US,en;q=0.5

Accept-Encoding: gzip, deflate

Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

Content-Length: 12345

Connection: keep-alive

Content-Disposition: form-data; name="avatar"; filename="malicious.php"

Content-Type: image/jpeg

phpinfo();

?>