20 Mar 25 1:45 am
Preventing XSS (Cross-Site Scripting) and SQL Injection is essential for securing a web application. These vulnerabilities can allow attackers to steal user data, manipulate databases, or even take control of a system.
Preventing XSS
XSS attacks occur when malicious scripts are injected into web pages viewed by other users. To prevent XSS:
Sanitize User Input – Remove or escape special characters like <script>, <iframe>, and others from user input.
Use Content Security Policy (CSP) – A properly configured CSP restricts the execution of untrusted scripts in the browser.
Encode Output – When displaying user input, encode it to prevent the browser from interpreting it as executable code.
Validate Input on Both Client and Server Side – Never trust client-side validation alone; always validate on the server as well.
Preventing SQL Injection
SQL Injection attacks exploit vulnerabilities in database queries to manipulate or steal data. To prevent SQL Injection:
Use Prepared Statements and Parameterized Queries – Instead of directly injecting user input into SQL queries, use placeholders to bind values securely.
Employ ORM (Object-Relational Mapping) Libraries – Frameworks like
SQLAlchemy or Hibernate abstract database interactions, reducing SQL injection risks.
Limit Database Privileges – Assign minimal required permissions to database users to limit potential damage.
Use Web Application Firewalls (WAFs) – WAFs can detect and block malicious SQL queries before they reach the database.
Ensuring web security is crucial, especially as applications become more interconnected with emerging technologies. If you’re interested in learning how security applies to modern technologies, enrolling in an
Internet of Things Course can help you understand cybersecurity challenges in IoT systems.
