Error Passing 32 Bit Integer in URL

https://imgur.com/a/uQnAqbK is not the default CI4 error page.

So, the conclusion is that the web server or Web Application Firewall may be returning a 403.
Check with your service provider's technical support.

Unfortunately it’s AWS and there’s no real support unless you pay for a support plan.

It seems Plesk error page.
https://talk.plesk.com/threads/server-er...nt.360836/

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

It only happens with CodeIgniter though. If I make a basic PHP page with that URL token it works fine ?‍♂️

Check your web server's log, and CI4 log.
See https://codeigniter4.github.io/CodeIgnit...error-logs

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

[client 193.37.254.75] ModSecurity: Access denied with code 403 (phase 2). Pattern match "(?i: (?:^(-0000023456|-2147483648|-2147483649|0000012345|0000023456|1e309|2147483648|2147483647|2.2.90738585072007e-308|4294967295|4294967296)$))" at ARGS:device. [file "/etc/apache2/modsecurity.d/rules/comodo_free/22_SQL_SQLi.conf"] [line "32"] [id "211680"] [rev "2"] [msg "COMODO WAF: Looking for integer overflow attacks||domain.com|F|2"] [data "Matched Data: 4294967295 found within ARGS:device: 4294967295"] [severity "CRITICAL"] [tag "CWAF"] [tag "SQLi"] [hostname "domain.com"] [uri "/events"] [unique_id "ZhIMy938svLQ5FWml8GGJwAAAAo"]

That's it. mod_security blocks requests with the Query string.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper