Cross-Site Scripting, or XSS, is an attack where hackers insert malicious code into your website through fields like search bars, login forms, or any space where users type information. When a site is vulnerable, that injected code can alter what appears on your pages and even access sensitive data like user cookies and session details.
This kind of attack is dangerous because visitors trust your website. When they see familiar branding and URLs, they assume any request for personal information is legitimate. Hackers exploit that trust to collect usernames, passwords, credit card information, and other sensitive details. That stolen data can then be used for identity theft or more damaging criminal activity.
SiteLock’s 360-degree scanning technology checks every input field on your site. It works by simulating XSS attacks with safe test code to confirm whether your fields can be exploited. The scan doesn’t change anything on your site. It simply detects vulnerabilities the same way a hacker would, but without the risk.
What measures can you put in place?
Keep every application on your website updated. Reduce the number of third-party plugins you rely on, because outdated or poorly maintained plugins are a common source of vulnerabilities. Use a scanning service that includes XSS protection, such as SiteLock Premium or SMB. If you build your own site or write your own code, validate every input field, block harmful characters, and make sure your code settings are regularly tightened for security. You can also rely on SiteLock’s Expert Services team to fix any issues detected during your scans.
