From the course: Windsurf for Privacy-Conscious Development
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SQL injection - Windsurf Tutorial
From the course: Windsurf for Privacy-Conscious Development
SQL injection
- [Instructor] SQL injection represents one of the most persistent and dangerous web application vulnerabilities. Despite being so well understood for such a long time, it continues to appear as such a dangerous vulnerability because developers still create vulnerable code patterns. SQL injection occurs when the user input is directly concatenated into SQL queries without proper sanitization, allowing attackers to manipulate the intended query structure and potentially access or modify unauthorized data. So let's examine a typical vulnerable login implementation that demonstrates the core SQL injection problem. So consider this comment authentication pattern. The query looks straightforward. It searches for a user record matching the provided username and password. However, when user input is directly substituted into the query string, an attacker can manipulate the SQL logic itself. So for example, if it attacker enters…
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