{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 Official

The core of the payload is SELECT UPPER(XMLType(...)) FROM DUAL .

The initial '{KEYWORD}' AND ... attempts to break out of a single-quoted string literal within a vulnerable SQL query. : The core of the payload is SELECT UPPER(XMLType(

AND 'pLsa'='pLs is a "dead end" string to balance out the remaining single quote from the original application code, preventing a syntax error that might mask the injection result. The core of the payload is SELECT UPPER(XMLType(

This string is a classic example of an payload, specifically targeting Oracle databases. Technical Breakdown The core of the payload is SELECT UPPER(XMLType(

: Strict allow-listing of expected characters for the {KEYWORD} field.

: SQL Injection (Error-Based/Out-of-Band).