Vulnerability · Published Jul 31, 2026 · Assigned by GitHub_M

CVE-2026-63222CodeIgniter: Path traversal in UploadedFile::move() when using client-provided filenames

High 7.5

In plain English

A high-severity path traversal in CodeIgniter4 from codeigniter4. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.6%top 49.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	codeigniter4/framework	4.7.4	GHSA-hhmc-q9hp-r662
Ubuntu:24.04:LTS	php-codeigniter-framework	no fix listed	UBUNTU-CVE-2026-63222
Ubuntu:26.04:LTS	php-codeigniter-framework	no fix listed	UBUNTU-CVE-2026-63222
Ubuntu:26.10	php-codeigniter-framework	no fix listed	UBUNTU-CVE-2026-63222

Affected products (as reported)

Vendor	Product	Versions
codeigniter4	CodeIgniter4	< 4.7.4

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-hhmc-q9hp-r662 x_refsource_CONFIRM
https://github.com/codeigniter4/CodeIgniter4/commit/20ebcf4694d96d3c97fbc3938e360730e4f54618 x_refsource_MISC
https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4 x_refsource_MISC