Definition
An attack that inserts malicious SQL code into application queries, potentially exposing or modifying database contents.
In Depth
SQL injection occurs when user input is concatenated directly into SQL queries without parameterization. Attackers can read sensitive data, modify records, delete tables, or even execute system commands. Prevention requires parameterized queries (prepared statements), ORM usage, and input validation.
Example Usage
Using Django's ORM (which automatically parameterizes queries) instead of raw SQL to prevent injection: Term.objects.filter(slug=user_input).
Business Context
SQL injection has been the #1 web vulnerability for decades. Using an ORM like Django's eliminates most injection risks by default.
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