What is cross-site scripting (XXS)?
What is the difference between reflective or persistent XSS?
The main difference between reflective and persistent XSS is how the malicious code, or XSS payload, is stored and executed. In reflective XSS, the payload is injected into a website, which is then returned to the user. This type of attack is usually carried out through a URL that contains the injected code and the code is executed when the user clicks on the link. Persistent XSS, on the other hand, injects the malicious code directly into the website, where it is stored in the database. This type of attack is more dangerous because it only needs to be injected once and can then come back to other users.
How can cross-site scripting be prevented?
To protect against XSS attacks, it is important that programmers correctly validate and clean up user-supplied input. This may involve the use of techniques such as input filtering and output coding to ensure that only permitted characters and data are included in the output of the Web site or Web application. It is also important to keep the Web application or Web site up-to-date with the latest security patches to use to minimize the risk of XSS vulnerabilities. In fact, plug-ins can also contain vulnerabilities, such as XSS.
XSS is a serious vulnerability that can affect Web applications and Web sites. By correctly validating and cleaning user-supplied input and following secure programming standards such as the OWASP secure coding practices, Web developers can protect themselves from XSS attacks and protect their users from these types of vulnerabilities. Want to know if your application is safe from XSS? In a pen test and Website Security Check, CyberAnt checks your application for XSS.