Top "Sql-injection" questions

SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database contents to the attacker).

How can I prevent SQL injection in PHP?

If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection, like …

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How can I sanitize user input with PHP?

Is there a catchall function somewhere that works well for sanitizing user input for SQL injection and XSS attacks, while …

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Java - escape string to prevent SQL injection

I'm trying to put some anti sql injection in place in java and am finding it very difficult to work …

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SQL injection that gets around mysql_real_escape_string()

Is there an SQL injection possibility even when using mysql_real_escape_string() function? Consider this sample situation. SQL is …

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Are PDO prepared statements sufficient to prevent SQL injection?

Let's say I have code like this: $dbh = new PDO("blahblah"); $stmt = $dbh->prepare('SELECT * FROM users where username = :…

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How does the SQL injection from the "Bobby Tables" XKCD comic work?

Just looking at: (Source: https://xkcd.com/327/) What does this SQL do: Robert'); DROP TABLE STUDENTS; -- I know both …

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Preventing SQL injection in Node.js

Is it possible to prevent SQL injections in Node.js (preferably with a module) in the same way that PHP …

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Why do we always prefer using parameters in SQL statements?

I am very new to working with databases. Now I can write SELECT, UPDATE, DELETE, and INSERT commands. But I …

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How can prepared statements protect from SQL injection attacks?

How do prepared statements help us prevent SQL injection attacks? Wikipedia says: Prepared statements are resilient against SQL injection, because …

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How does a PreparedStatement avoid or prevent SQL injection?

I know that PreparedStatements avoid/prevent SQL Injection. How does it do that? Will the final form query that is …

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