{keyword}' And 6957=(select Upper(xmltype(chr(60)||chr(58)||chr(113)||chr(98)||chr(113)||chr(118)||chr(113)||(select (case When (6957=6957) Then 1 Else 0 End) From Dual)||chr(113)||chr(113)||chr(98)||chr(113)||chr(113)||chr(62))) From Dual) And 'plsa'='pls -

The CHR() functions are used to bypass simple text filters. They translate to: CHR(60) = < CHR(58) = :

The attacker sees this error in the HTTP response. Because the error contains the 1 (the result of the subquery), the attacker knows the injection worked. : The CHR() functions are used to bypass simple text filters

: If successful, an attacker can extract sensitive data (usernames, passwords, database version) one piece at a time by reflecting that data inside the error messages. The CHR() functions are used to bypass simple text filters

CHR(113)CHR(98)CHR(113)CHR(118)CHR(113) = qbqvq (a unique tag/marker) The CHR() functions are used to bypass simple text filters