What is CVE-2026-63222?

CVE-2026-63222 is a high-severity vulnerability in Codeigniter4, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-31.

How severe is CVE-2026-63222?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Codeigniter4

CVE-2026-63222

CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, calling UploadedFile::move() without a second argument uses the client-provided filename without sanitization, allowing a remote attacker to use path traversal sequences to wri…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Codeigniter4 — versions < 4.7.4

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-63222?: CVE-2026-63222 is a high-severity vulnerability in Codeigniter4, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-07-31.
How severe is CVE-2026-63222?: High severity. CVSS v3 base score is 7.5 out of 10.