While inurl: pk id 1 is the classic, attackers use many variations because developers use different naming conventions.

Add a single quote:

If the application takes id=1 and concatenates it directly into a database query (e.g., SELECT * FROM users WHERE id = 1 ), an attacker will change the URL to id=1' or id=1 OR 1=1 . If the application throws a database error or behaves unexpectedly, the attacker knows they can inject malicious SQL commands to extract the entire database.

Inurl Pk Id 1 «2025-2026»

While inurl: pk id 1 is the classic, attackers use many variations because developers use different naming conventions.

Add a single quote:

If the application takes id=1 and concatenates it directly into a database query (e.g., SELECT * FROM users WHERE id = 1 ), an attacker will change the URL to id=1' or id=1 OR 1=1 . If the application throws a database error or behaves unexpectedly, the attacker knows they can inject malicious SQL commands to extract the entire database. inurl pk id 1