{keyword}');select Pg_sleep(5)-- Here
đź’ˇ : If a 5-second sleep works, a hacker can eventually use similar "blind" logic to extract your entire database, one character at a time.
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 {KEYWORD}');SELECT PG_SLEEP(5)--
The string is a classic example of a SQL injection (SQLi) payload designed for Time-Based Blind SQL injection . 🛠️ Anatomy of the Payload
: This is the "gold standard." It treats all input as data, never as executable code. đź’ˇ : If a 5-second sleep works, 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
: Ensure the database user for the web app cannot execute administrative commands like PG_SLEEP . 🛡️ How to Fix It The string is
: Find a search bar, login field, or URL parameter (e.g., ://example.com ). Inject the Payload : Replace the input with the payload. Observe the Lag : If the page loads instantly , the input is likely sanitized.