CodeIgniter is vulnerable to IP address spoofing when using proxy
Priority LOW 33CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-345.
Summary
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()`.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00398 34th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed CodeIgniter4 (codeigniter4): 4.2.11codeigniter4/framework (Packagist): 4.2.11
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| codeigniter4 | CodeIgniter4 | before 4.2.11 | 4.2.11 | Patch available | CNA |
| — | codeigniter4/framework (Packagist) | before 4.2.11 | 4.2.11 | Patch available | GHSA-ghw3-5qvm-3mqc |
- CodeIgniter4 Vendorcodeigniter4 Affected before 4.2.11 Fixed in 4.2.11 Patch available CNA
- codeigniter4/framework (Packagist) Vendor— Affected before 4.2.11 Fixed in 4.2.11 Patch available GHSA-ghw3-5qvm-3mqc
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:* | 4.0.0 to before 4.2.11 | Vulnerable | codeigniter4 |
- cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.2.11 Vulnerable ·codeigniter4
Remediation
- Fix · CNA CodeIgniter4 (codeigniter4) Fixed in 4.2.11
- Fix · GHSA-ghw3-5qvm-3mqc codeigniter4/framework (Packagist) Fixed in 4.2.11 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23556
- 2026-10-03 Alias added: GHSA-ghw3-5qvm-3mqc
References
More codeigniter4 Codeigniter vulnerabilities
- TI-2014-07135 CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it… CVSS 3.0CRITICAL 9.8
- TI-2022-16370 SameSite may allow cross-site request forgery (CSRF) protection to be bypassed CVSS 3.1HIGH 8.8
- TI-2022-06025 Deserialization of Untrusted Data in Codeigniter4 CVSS 3.1CRITICAL 9.8
- TI-2024-27591 A Cross-Site Request Forgery (CSRF) in Codeigniter 3.1.13 allows attackers to arbitrarily… CVSS 3.1HIGH 7.5
- TI-2014-07136 CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by… CVSS 3.0CRITICAL 9.8
- TI-2024-19671 CodeIgniter4 Language class DoS Vulnerability CVSS 3.1HIGH 7.5
Sources
- CVE-2022-23556 · CVE Program
- CVE-2022-23556 · NVD
- FIRST EPSS
- GHSA-ghw3-5qvm-3mqc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences