: This is the core of the attack. It tells the database to combine the results of the legitimate query with the results of a new, malicious one.
: Use parameterized queries so that user input is never executed as code. : This is the core of the attack
If you found this in your website's logs, it means someone (or an automated bot) was . It is a common sign of a "SQLi" attack. To protect your application, you should: If you found this in your website's logs,
: A WAF can often block these types of patterned attacks automatically. : The attacker uses NULL values to figure
: The attacker uses NULL values to figure out how many columns are in the original database table. If the number of NULL s doesn't match the number of columns in the original query, the database will return an error.