CVE-2024-4748 is a high severity OS command injection flaw in CRUDDIY, an open source CRUD generator, scored 8.8. CERT Polska reports versions through 202312.1 are affected and that the project has not received a fix. If you run it, stop it when not in use, and keep it away from your browser's reach.
What's affected
CERT Polska's advisory lists the vendor and product as CRUDDIY, vulnerable versions as all through 202312.1, and the weakness as CWE-78, OS command injection. It says newer releases are believed to be vulnerable as well. It also says the authors did not treat the issue as important and the project has not received a patch.
That means there is no fixed version to move to. I did not find one in the sources, so do not assume a later release is safe. The record's own reference includes a GitHub issue, number 67 on the project, titled Security vulnerability disclosure. I could not read its contents from the page.
NVD scores it 8.8 High. The KEV flag is false, and none of the sources report exploitation in the wild.
How to check if you're exposed
CRUDDIY is a project you download and run, not a library you import. So:
- Search developer machines and servers for a CRUDDIY checkout, a container built from it, or a running process.
- Check the version or commit date. Releases through 202312.1 are named as vulnerable.
- Note where it listens. CERT Polska says it is meant to be launched locally.
- Check whether it was ever bound to a network interface that other machines can reach.
The weakness is described like this by CERT Polska: a crafted POST request to the application server leads to shell command injection. The exposure comes from the browser. A person with the project running locally might visit a website that sends such a request to the local server.
What to do now
- Stop running CRUDDIY when you are not actively using it.
- Do not browse the web in a profile on the same machine while it runs. Use a separate browser profile or a separate machine.
- Bind the server to the loopback interface only, and block inbound connections to its port.
- Prefer a maintained tool, or generate your admin screens another way, if you need something long lived.
- Watch the project for a release with a fix, and check the advisory page for updates.
- If it ran on a shared host, review shell history and new processes.
Try it yourself
Click through it at your own pace, or open it full screen.
Why it matters
Command injection happens when input reaches a shell without being cleaned. The attacker supplies text, and the shell treats part of it as a command. It is among the most severe classes because it gives the attacker the rights of the process.
The twist here is the route. A tool that only listens on localhost feels safe, yet any web page you open can send requests to localhost from your browser. So a local only tool is not safe from the web. This is also a good case for reachability thinking: the question to ask is who can send a request to the port, not just whether the port is public.
Quick check
Is there a patched CRUDDIY?
CERT Polska says the project has not received a patch and that newer releases are believed vulnerable. Check the project for any later change.
Why does a local tool matter?
Because a web page you visit can ask your browser to send a request to a server on your own machine.
Sources
- CERT Polska advisory for CVE-2024-4748
- Project issue 67 listed in the record (could not be read in full)
- NVD record data for CVE-2024-4748
Last reviewed: 19 October 2026.
