Comments

• Ajay Singh { You are right, it's the Jetpack which is causing this issue. I've already removed Jetpack completely. }
• Alex { It is the Jetpack plugin which causes this problem. Jetpack sucks, we should never use it. They steal all our data, monetise it and we... }
• Zack { High CPU load remain because with this code, the 404 wp error page will be call and the database connection to. To avoid this you... }
• Ajay Singh { These IPs belong to well known spammers. Just Google for it and you will more details. }
• jmp { For the record, I have that very same IP on my logs now. Same issue, trying to exploit xmlrpc.php. }
• Ash { Why disabling pingback will not solve this problem? After all xmlrpc is used for pingback innit? }