CVE-2026-63222: CODEIGNITER4

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

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 write uploaded content outside the intended directory when the application exposes an upload path. This issue is fixed in version 4.7.4.

Affected products

• CODEIGNITER4 CODEIGNITER4: before 4.7.4 (fixed in 4.7.4)

Published 2026-07-31. Last modified 2026-09-08.