CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::isSecure() trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request, allowing an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request as secure. This may have impacted applications that rely on isSecure(), force_https(), forceGlobalSecureRequests, or similar logic to enforce HTTPS-only access or make security-sensitive decisions. Exploitability depends on deployment configuration. Applications are most exposed if the backend is reachable directly over HTTP, or if a reverse proxy/load balancer forwards client-supplied forwarding headers without stripping or overwriting them. This issue has been fixed in version 4.7.4.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7wmf-pw8j-mc78 CodeIgniter: Spoofable forwarded HTTPS headers in IncomingRequest::isSecure()
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 02 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Codeigniter
Codeigniter codeigniter
Vendors & Products Codeigniter
Codeigniter codeigniter

Fri, 31 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 31 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Description CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::isSecure() trusted the X-Forwarded-Proto and Front-End-Https headers from any incoming request, allowing an attacker could spoof these headers and cause the application to incorrectly treat an HTTP request as secure. This may have impacted applications that rely on isSecure(), force_https(), forceGlobalSecureRequests, or similar logic to enforce HTTPS-only access or make security-sensitive decisions. Exploitability depends on deployment configuration. Applications are most exposed if the backend is reachable directly over HTTP, or if a reverse proxy/load balancer forwards client-supplied forwarding headers without stripping or overwriting them. This issue has been fixed in version 4.7.4.
Title CodeIgniter: Spoofable forwarded HTTPS headers in IncomingRequest::isSecure()
Weaknesses CWE-348
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-07-31T13:58:31.522Z

Reserved: 2026-07-15T22:19:06.907Z

Link: CVE-2026-63220

cve-icon Vulnrichment

Updated: 2026-07-31T13:58:19.798Z

cve-icon NVD

Status : Received

Published: 2026-07-31T04:17:24.337

Modified: 2026-07-31T14:16:50.750

Link: CVE-2026-63220

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-02T19:30:17Z

Weaknesses