A server-side request forgery (SSRF) vulnerability in Illia Cloud illia-Builder before v4.8.5 allows authenticated users to send arbitrary requests to internal services via the API. An attacker can leverage this to enumerate open ports based on response discrepancies and interact with internal services.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.