https://nalar.dev/tags/injection-prevention/ Recent content in Injection Prevention on Nalar Hugo en-us Fri, 04 Sep 2026 00:00:00 +0700 https://nalar.dev/keep-data-separate-from-interpreter-syntax/ Fri, 04 Sep 2026 00:00:00 +0700 https://nalar.dev/keep-data-separate-from-interpreter-syntax/ <p>Applications constantly move data into systems that interpret syntax: databases parse queries, shells parse commands, browsers parse HTML, and template engines parse expressions. A security problem appears when data that should remain inert can change the structure of those instructions.</p> <p>That is the core of <strong>injection</strong>. If an attacker can influence where instructions end and data begins, the receiving interpreter may perform work the developer never intended. The consequence depends on the interpreter: unauthorized database operations, unintended operating-system actions, or active content in a browser are all possible outcomes of the same design mistake.</p>