CVE-2022-23556

PoC —

CVSS 3.1

7.5 high

EPSS

<1%p31

Published

Dec 22, 2022 (Dec 22, 2022)

Modified

Jun 17, 2026

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()`.

Vendors: codeigniter
Products: codeigniter
Weakness: CWE-345
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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