prevent content spoofing on /search

i have found content spoofing go to this URL https://gratipay.com/search?q=Hi.%20We%20Need%20you%20and%20the%20founder%20of%20gratipay%20but%20make%20sure%20that%20before%20logging%20in%20you%20go%20to%20Http://Evilsite.com%20and%20when%20you%20go%20to%20the%20mentioned%20link%20you%20will%20see%20two%20fields%20of%20Login%20email%20and%20login%20password%20use%20your%20Eshare%20account%E2%80%99s%20login%20credentials%20to%20login%20there.%20The%20site%20Evilsite.com%20is%20trusted%20by%20us.%20After%20logging%20in%20you%20will%20see%20a%20credit%20card%20panel%20where%20you%20need%20to%20put%20your%20credit%20card%20details%20(%20which%20you%20used%20for%20Eshare%20account%20)%20so%20we%20could%20verify%20your%20identity%20on%20the%20other%20domain%20also.%20We%20are%20really%20Glad%20to%20have%20you%20here%20please%20do%20not%20hesitate%20to%20contact%20us%20any%20time%20at%[email protected]%20we%20love%20to%20see%20you%20speak%20hello.%20Now%20close%20this%20window%20and%20follow%20the%20instructions%20above.%20Thank%20you%20for%20your%20patience%20and%20understanding.%20We%20Really%20appreciate%20it. Thanks shahzaib