: This is a comment operator that tells the database to ignore the rest of the original, legitimate code.
This specific format is frequently generated by automated security testing tools like to verify if a specific input field can be exploited to leak data. : This is a comment operator that tells
: This is a dummy value intended to make the original query return no results (by targeting a non-existent ID), allowing the results of the second query to take over the output. : This is the "fingerprint
: This is the "fingerprint." The attacker concatenates specific random strings. If the web page then displays "qbqvqCPVNpZTzSGrDPCuUjMEwGUrDiXdBUrIytTqtktxYqqbqq" on the screen, the attacker knows the site is vulnerable to SQL injection. : These are placeholders used to match the
Are you seeing this in your , or are you currently testing an application for security holes?
: These are placeholders used to match the number of columns in the original database table.