Leading Quote in Firewall log

Hi,
My firewall log blocked the following:
GET /index.php - Leading quote - [GET:route = %27]

Does anyone know what this does?

Thanks

Not really an Opencart thing but since you asked. %27 is URL encoded single quote '
Some scammers / hacks will try and pass a quote, single or double, with sql injection or other things, trying to get into your cart backend or just mess up your site "for fun". Your firewall also should have provided where they were trying this and at least part of the code they were trying to send.
Mike

I understand it's not directly related to Opencart but I didn't know if they were trying to hack something specific to Opencart.
Thanks for your reply.

Recommended Actions:
Review Logs: Check your web server logs for similar patterns and other blocked attempts. This could indicate an ongoing reconnaissance or attack.
Sanitize Inputs: Ensure that your web application is sanitizing and validating inputs properly to prevent injection vulnerabilities.
Update Software: Make sure your web server and any web applications are up to date with the latest security patches.
Firewall Rules: Verify that your firewall rules are correctly set up to block suspicious activity like this.