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HIGH7.7

GHSA-w6jr-wj64-mc9x

Deserialization of Untrusted Data in Codeigniter4

Quick fix

GHSA-w6jr-wj64-mc9x — codeigniter4/framework: upgrade to the fixed version with the command below.

composer require codeigniter4/framework:^4.1.6

Details

### 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](https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection)

### For more information If you have any questions or comments about this advisory: * Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues) * Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/codeigniter4/framework
Introduced in: 0Fixed in: 4.1.6
Fixcomposer require codeigniter4/framework:^4.1.6

References