Even if the site is safe from SQL injection, it may be vulnerable to IDOR. If id=1 displays the site administrator's private profile, an attacker simply needs to change the value to id=2 to access a different user's data. If the application does not check whether the current user has permission to view id=2 , it exposes a severe authorization flaw.
When a researcher or "black hat" uses this dork, they are hunting for a specific architectural pattern: inurl php id 1
While inurl:php?id=1 is a classic, the internet has evolved. Even if the site is safe from SQL
Sometimes, this query might be used to find administrative interfaces or sensitive data exposure. For instance, if a web application's administrative interface is accessible through a simple numeric ID (e.g., admin.php?id=1 ), it could potentially be accessed by unauthorized users. When a researcher or "black hat" uses this
A more specific concern would be testing for SQL injection vulnerabilities. If a web application's PHP scripts are not properly sanitizing user input (in this case, the "id" parameter), an attacker might be able to inject malicious SQL code to extract or modify sensitive data.