The string is a classic example of a SQL injection (SQLi) payload designed for Time-Based Blind SQL injection . 🛠️ Anatomy of the Payload
: This closes the original SQL function and terminates the statement. {KEYWORD}');SELECT PG_SLEEP(5)--
: Ensure the database user for the web app cannot execute administrative commands like PG_SLEEP . The string is a classic example of a
: This attempts to "break out" of a text field by providing a closing single quote. : This attempts to "break out" of a
: This is a SQL comment. It ignores the rest of the original, legitimate query so it doesn't cause a syntax error. 🔍 How to Use This for Testing
Security professionals use this to confirm a vulnerability exists without damaging data.
If the page takes (or more) to load, you have confirmed a PostgreSQL Injection vulnerability . 🛡️ How to Fix It