1 Else 0 End) From Dual)||chr(113)||chr(113)||chr(98)||chr(113)||chr(113)||chr(62))) From Dual) And 'plsa'='pls — {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

The initial '{KEYWORD}' AND ... attempts to break out of a single-quoted string literal within a vulnerable SQL query. :

: Systems running Oracle Database where user input is not properly sanitized or prepared using parameterized queries. Remediation The initial '{KEYWORD}' AND

: 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. Remediation : If successful, an attacker can extract

The payload injects a subquery: (SELECT (CASE WHEN (6957=6957) THEN 1 ELSE 0 END) FROM DUAL) . This is a "Boolean test" to see if the logic holds true. : : The core of the payload is SELECT UPPER(XMLType(

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

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

: Use bind variables (e.g., ? or :1 ) so the input is treated as data, not executable code.