TI-2026-45098 Aliases CVE-2026-63220 GHSA-7wmf-pw8j-mc78

CodeIgniter: Spoofable forwarded HTTPS headers in IncomingRequest::isSecure()

LOW 21CWE-348Published 2026-07-31 · Updated 2026-07-31

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00168 6th percentileScored 2026-11-07

Fix Fixed CodeIgniter4 (codeigniter4): 4.7.4codeigniter4/framework (Packagist): 4.7.4

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 4.7.4	4.7.4	Patch available	CNA
—	codeigniter4/framework (Packagist)	before 4.7.4	4.7.4	Patch available	GHSA-7wmf-pw8j-mc78

CodeIgniter4 Vendorcodeigniter4 Affected before 4.7.4 Fixed in 4.7.4 Patch available CNA
codeigniter4/framework (Packagist) Vendor— Affected before 4.7.4 Fixed in 4.7.4 Patch available GHSA-7wmf-pw8j-mc78

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:codeigniter:codeigniter::::::::	—	—	codeigniter4

cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:* Versions — — ·codeigniter4

Remediation

Fix · CNA CodeIgniter4 (codeigniter4) Fixed in 4.7.4
Fix · GHSA-7wmf-pw8j-mc78 codeigniter4/framework (Packagist) Fixed in 4.7.4 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-63220
2026-10-03 Alias added: GHSA-7wmf-pw8j-mc78

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-63220

Other 4

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

See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences