Sql+injection+challenge+5+security+shepherd+new [better]

: In SQL, \\ is interpreted as a single literal backslash ( \ ), and the ' that follows is treated as a terminating quote for the SQL string.

: The application expects a valid coupon code to set the price to

SELECT * FROM customers WHERE customerId="1" OR "1"="1"; sql+injection+challenge+5+security+shepherd+new

Crucially, the application employs an escaping function that (and only the single quote). It does not escape double quotes ( " ).

We cannot use ORDER BY easily due to space filters, so we use UNION SELECT NULL . Payload: 1'/**/UnIoN/**/SeLeCt/**/NULL/**/aNd/**/1=2-- - : In SQL, \\ is interpreted as a

We need to extract the table containing the flag. The "new" challenge often uses a table called users or challenge5_users . Payload to guess the table name (Boolean blind): 1'/**/aNd/**/(SeLeCt/**/count(*)/**/FrOm/**/users)/**/>/**/0-- -

We want to inject a payload that results in an unescaped single quote. The application takes our input, adds a backslash before any single quote it finds, and then inserts the result into the query. We cannot use ORDER BY easily due to

If successful, the application will bypass the validation, and the secret key will be displayed.

Notice how the fixed code requires zero filters. It separates logic from data entirely.

To solve this challenge, we must bypass the escaping function. Here is the recommended approach. 1. Initial Reconnaissance