Package Instance

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Laravel is a web application framework. Versions of Laravel before 6.20.11, 7.30.2 and 8.22.1 contain a query binding exploitation. This same exploit applies to the illuminate/database package which is used by Laravel. If a request is crafted where a field that is normally a non-array value is an array, and that input is not validated or cast to its expected type before being passed to the query builder, an unexpected number of query bindings can be added to the query. In some situations, this will simply lead to no results being returned by the query builder; however, it is possible certain queries could be affected in a way that causes the query to return unexpected results.

Unexpected database bindings
This is a follow-up to the previous security advisory (GHSA-3p32-j457-pg5x) which addresses a few additional edge cases.

If a request is crafted where a field that is normally a non-array value is an array, and that input is not validated or cast to its expected type before being passed to the query builder, an unexpected number of query bindings can be added to the query. In some situations, this will simply lead to no results being returned by the query builder; however, it is possible certain queries could be affected in a way that causes the query to return unexpected results.

SQL Server LIMIT / OFFSET SQL Injection in laravel/framework and illuminate/database
### Impact

Those using SQL Server with Laravel and allowing user input to be passed directly to the `limit` and `offset` functions is vulnerable to SQL injection. Other database drivers such as MySQL and Postgres are not affected by this vulnerability.

### Patches

This problem has been patched on Laravel versions 6.20.26, 7.30.5, and 8.40.0.

### Workarounds

You may workaround this vulnerability by ensuring that only integers are passed to the `limit` and `offset` functions, as well as the `skip` and `take` functions.

Laravel Framework RCE Vulnerability
In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in `Illuminate/Encryption/Encrypter.php` and PendingBroadcast in `gadgetchains/Laravel/RCE/3/chain.php` in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.

Session Fixation
Cookie serialization vulnerability in laravel framework.

Laravel Cookie serialization vulnerability
Laravel 5.6.30 is a security release of Laravel and is recommended as an immediate upgrade for all users. Laravel 5.6.30 also contains a breaking change to cookie encryption and serialization logic. Refer to [laravel advisory](https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30) for more details and read the notes carefully when upgrading your application.