GHSA-ghw3-5qvm-3mqc
GitHub Security Advisory
CodeIgniter4 allows spoofing of IP address when using proxy
Advisory Details
### Impact
This vulnerability may allow attackers to spoof their IP address when your server is behind a reverse proxy.
### Patches
Upgrade to v4.2.11 or later, and configure `Config\App::$proxyIPs`.
### Workarounds
Do not use `$request->getIPAddress()`.
### References
- https://codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\HTTP\Request::getIPAddress
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)
* Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)
Affected Packages
Related CVEs
Key Information
Dataset
Data from GitHub Advisory Database. This information is provided for research and educational purposes.