1 | Inurl Pk Id
Bingo. The attacker now knows the site uses MySQL and is vulnerable to injection.
Attackers (and penetration testers) use this dork to discover: inurl pk id 1
The request inurl:pk id=1 refers to a specific search operator (a " Google Dork ") used to find web pages whose URL includes the parameters (often short for Primary Key) and Django documentation inurl pk id 1
https://target.com/profile/pk?id=1 https://target.com/document.php?pk&id=1 inurl pk id 1
Similarly, id stands for Identifier. It functions almost identically to pk . URLs often look like product.php?id=45 or user.php?id=admin .
Look for specific file types that leak data.