cvedb.io
CVE-2022-21647
HIGH · CVSS 7.7
EPSS exploitation probability: 0%
Published 2022-01-04T20:15:07.930 · Last modified 2026-06-17T04:26:40.723

Summary

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()`.

Affected products

codeigniter — codeigniter

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.