7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.001 Low
EPSS
Percentile
29.4%
This vulnerability may allow attackers to spoof their IP address when your server is behind a reverse proxy.
Upgrade to v4.2.11 or later, and configure Config\App::$proxyIPs
.
Do not use $request->getIPAddress()
.
If you have any questions or comments about this advisory:
codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\HTTP\Request::getIPAddress
github.com/codeigniter4/CodeIgniter4
github.com/codeigniter4/CodeIgniter4/commit/5ca8c99b2db09a2a08a013836628028ddc984659
github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-ghw3-5qvm-3mqc
github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-23556.yaml
nvd.nist.gov/vuln/detail/CVE-2022-23556