CVE-2022-23556
CodeIgniter4 allows spoofing of IP address when using proxy
7.0
HIGH
CVSS 3.1
EPSS 0.37%
Description
CodeIgniter is a PHP full-stack web framework. This vulnerability may allow attackers to spoof their IP address when the server is behind a reverse proxy. This issue has been patched, please upgrade to version 4.2.11 or later, and configure `Config\App::$proxyIPs`. As a workaround, do not use `$request->getIPAddress()`.
How to fix CVE-2022-23556
To remediate CVE-2022-23556, upgrade the affected package to a fixed version below.
- —upgrade to 4.2.11 or later
- —upgrade to 4.2.11 or later
Is CVE-2022-23556 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 4.0.0, < 4.2.11
- from 0, < 4.2.11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L |