{keyword} Union All Select Null,null,null,null,null,null-- Gojb Review

: A website takes user input and places it directly into a SQL query without "cleaning" it first.

This represents the original search term or input value that a legitimate user would enter. In an attack scenario, the "payload" (the rest of the string) is appended to this keyword to trick the database into executing an additional command alongside the intended query. 2. UNION ALL : A website takes user input and places

: For a UNION to work, the second query must have the exact same number of columns as the first query. 3. SELECT NULL,NULL,NULL,NULL,NULL,NULL : A website takes user input and places

This string is a classic example of a used by security researchers and attackers to probe a website's database for vulnerabilities. : A website takes user input and places

If the page loads normally, the attacker knows the database is expecting 6 columns.

: By using six NULL values, the attacker is testing if the original query has exactly six columns.