{keyword};select Pg_sleep(5)-- -

: Strict allow-listing for expected formats (e.g., ensuring a "keyword" only contains alphanumeric characters).

A PostgreSQL function that pauses the current session for exactly 5 seconds. -- {KEYWORD};SELECT PG_SLEEP(5)--

If your goal is to "develop a feature" to prevent this type of attack, the focus should be on robust and query parameterization . 🛡️ Critical Defense Strategies : Strict allow-listing for expected formats (e

The SQL comment syntax used to ignore the rest of the original, legitimate query so it doesn't cause a syntax error. 🛠️ Secure Implementation Example (Node.js/pg) 🛡️ Critical Defense Strategies The SQL comment syntax

// UNSAFE: Vulnerable to the injection provided const query = "SELECT * FROM articles WHERE topic = '" + userInput + "'"; // SAFE: Parameterized query const query = "SELECT * FROM articles WHERE topic = $1"; const values = [userInput]; db.query(query, values, (err, res) => { // The database treats $1 strictly as data, even if it contains "SELECT PG_SLEEP(5)" }); Use code with caution. Copied to clipboard