Common Website Security Vulnerabilities
Website security is crucial for protecting user data, maintaining trust, and preventing service disruptions. Attackers constantly probe for weaknesses. Understanding common vulnerabilities is the first step towards building more secure web applications.
Investigating a Suspicious IP?
If you notice repeated failed login attempts from a specific address, use our IP Lookup Tool to find their geolocation and ISP.
Key Vulnerabilities and Prevention
Cross-Site Scripting (XSS)
What it is: Attackers inject malicious scripts (usually JavaScript) into a website, which then get executed in the browsers of unsuspecting users.
Prevention: Use Input Sanitization & Output Encoding. Treat all user input as untrusted. Implement a strict Content Security Policy (CSP) header.
SQL Injection (SQLi)
What it is: Attackers insert malicious SQL code into database queries via user input fields, allowing them to bypass authentication or read sensitive data.
Prevention: Use Prepared Statements (Parameterized Queries) to separate the SQL command structure from the user-supplied data.
Cross-Site Request Forgery (CSRF)
What it is: An attacker tricks a logged-in user's browser into making an unwanted request to a web application they are authenticated with.
Prevention: Use Anti-CSRF Tokens (Synchronizer Token Pattern) and set the SameSite attribute on session cookies.