What is CVE-2026-63220?

CVE-2026-63220 is a medium-severity vulnerability in Codeigniter4, classified under CWE-348. CVSS score: 4.8/10. Published 2026-07-31.

How severe is CVE-2026-63220?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Codeigniter4

CVE-2026-63220

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…

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Codeigniter4 — versions < 4.7.4

Weakness classification (CWE)

CWE-348

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-63220?: CVE-2026-63220 is a medium-severity vulnerability in Codeigniter4, classified under CWE-348. CVSS score: 4.8/10. Published 2026-07-31.
How severe is CVE-2026-63220?: Medium severity. CVSS v3 base score is 4.8 out of 10.