{keyword} And 5241=cast((chr(113)||chr(112)||chr(120)||chr(98)||chr(113))||(select (case When (5241=5241) Then 1 Else 0 End))::text||(chr(113)||chr(118)||chr(112)||chr(106)||chr(113)) As Numeric) 【PC Trusted】

It looks like you've shared a snippet of rather than a typical search topic. Specifically, this string is designed to test for vulnerabilities in a database by using PostgreSQL-specific syntax ( ::text and CHR functions).

If a database is vulnerable, it will try to process this calculation. Because the resulting string (a mix of letters and the number 1) cannot be converted to a NUMERIC type, the database will throw an error message . An attacker looks for that specific error to confirm the database is open to manipulation. It looks like you've shared a snippet of

The SELECT (CASE WHEN (5241=5241) THEN 1 ELSE 0 END) is a "true or false" test. Since 5241 always equals 5241, it returns 1 . Because the resulting string (a mix of letters

The CHR() functions translate character codes into letters to bypass simple security filters. In this case, they spell out "qpxbq" and "qvpjq". Since 5241 always equals 5241, it returns 1