CVE-2023-24060: 
NixOS vulnerability analysis and mitigation

Haven v5d15944 contains a Server-Side Request Forgery (SSRF) vulnerability (CVE-2023-24060) in its Feeds functionality. The vulnerability allows authenticated users with permissions to create or add RSS Feeds to supply arbitrary hosts, potentially enabling internal network scanning (GitHub Issue).

The vulnerability exists in the Feeds functionality accessible via http://localhost:3000/feeds endpoint. Authenticated users can exploit this vulnerability by supplying arbitrary URLs in the 'url' parameter when creating or adding RSS Feeds. The server-side implementation fetches RSS feeds directly from the server rather than having this action performed client-side (GitHub Issue).

Successful exploitation of this vulnerability could allow malicious authenticated users to perform internal network scanning and potentially access internal resources by manipulating the RSS feed URLs. This could lead to unauthorized access to internal services and sensitive information (GitHub Issue).

The suggested fix is to modify the implementation to perform RSS feed fetching on the client-side instead of the server-side. This would eliminate the need for server-side requests and the associated periodic feed update script (GitHub Issue).