Deserialization of Untrusted Data in Codeigniter4

NGHIÊM TRỌNG 9.8CVE-2022-21647 · BIT-codeigniter-2022-21647 · GHSA-w6jr-wj64-mc9x · Công bố 04/01/2022 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2022-21647 là lỗ hổng mức NGHIÊM TRỌNG (CVSS 9.8) ảnh hưởng codeigniter4/framework, codeigniter (codeigniter).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 37.7%, cao hơn 98.5% các lỗ hổng khác.
Cách xử lý: cập nhật lên 4.1.6 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
codeigniter4/framework Packagist	`< 4.1.6`	`4.1.6`
codeigniter codeigniter	`≥ 4.0.0, < 4.1.6`	`4.1.6`

Mô tả

Impact

Deserialization of Untrusted Data was found in the old() function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing PHP code on the server. We are aware of a working exploit, which can lead to SQL injection.

Patches

Upgrade to v4.1.6 or later.

Workarounds

Do not use:

old() and form_helper
RedirectResponse::withInput() and redirect()->withInput()

References

PHP Object Injection | OWASP

For more information

If you have any questions or comments about this advisory:

Open an issue in codeigniter4/CodeIgniter4
Email us at SECURITY.md

Mô tả của NVD

CodeIgniter is an open source PHP full-stack web framework. Deserialization of Untrusted Data was found in the `old()` function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing PHP code on the server. We are aware of a working exploit, which can lead to SQL injection. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()->withInput()`.