Back to Database
Status published
High
CVE-2022-23556
CodeIgniter is vulnerable to IP address spoofing when using proxy
Vulnerability 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()`.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-23556
Credits & Attribution
No credits recorded in the NVD database.
References
More from codeigniter4
View All →CVE-2025-54418
CodeIgniter4's ImageMagick Handler has Command Injection Vulnerability
Critical
9.8
CVE-2025-24013
CodeIgniter validation of header name and value
Medium
5.3
CVE-2024-29904
CodeIgniter4 Language class DoS Vulnerability
High
7.5
CVE-2023-48708
Insertion of Sensitive Information into Log in codeigniter4/shield
Medium
5
CVE-2023-48707
Cleartext Storage of Sensitive Information in codeigniter4/shield
Medium
5
Affected Vendor
codeigniter4
View all reports →Affected Software
CodeIgniter4
Vulnerable Versions:
< 4.2.11
Timeline
Official Publish:
December 22nd, 2022
Last Modified:
April 15th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L