Torgeek
- Which PHP function can help prevent cross-site scripting?
- Is PHP vulnerable to XSS?
- Which of the following filtering techniques prevents all cross-site scripting XSS vulnerabilities in PHP?
- What is one common strategy to prevent XSS vulnerabilities?
Which PHP function can help prevent cross-site scripting?
Using htmlspecialchars() function – The htmlspecialchars() function converts special characters to HTML entities. For a majority of web-apps, we can use this method and this is one of the most popular methods to prevent XSS.
Is PHP vulnerable to XSS?
XSS is usually inserted through a website using a hyperlink or a web form. The inserted code can be used via any client-side language such as JavaScript, PHP, HTML. A simple XSS attack will occur on a vulnerable website that accepts user input via a GET parameter and displays the data on the website.
Which of the following filtering techniques prevents all cross-site scripting XSS vulnerabilities in PHP?
Content security policy (CSP) is a browser mechanism that aims to mitigate the impact of cross-site scripting and some other vulnerabilities. If an application that employs CSP contains XSS-like behavior, then the CSP might hinder or prevent exploitation of the vulnerability.
What is one common strategy to prevent XSS vulnerabilities?
To prevent XSS attacks, your application must validate all the input data, make sure that only the allowlisted data is allowed, and ensure that all variable output in a page is encoded before it is returned to the user.
