I have a wordpress website running on the server. Previously, everything was working fine but from last two days I am getting weird errors in apache2 logs as you can see below:
Access Logs
[23/Feb/2024:10:39:33 +0000] "GET /index.php-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined/each/poduct_id=4&ku=br1qpjdda92fwfm7ums.rifling HTTP/1.1" 403 286 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)" "17.211.217.110"
Error Logs
[Fri Feb 23 10:42:07.266182 2024] [core:error] [pid 7961] (36)File name too long: [client 172.11.16.23:2958] AH00036: access to /index.php-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined/each/poduct_id=088&ku=br31cygyr22f22/5s.transpirable failed (filesystem path '/var/www/html/index.php-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined-undefined')
I have no clue how to handle this and what’s the reason for that weird url hit