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xss-checker
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Readme
This package is a simple way to check if a string contains any HTML or JavaScrpipt so your database stays clean.
There are two main ways you can use this, either with nodejs on the backend or you could use it on the front end as well.
For nodejs, just install the npm package:
npm i xss-checker
To use it on your front-end you can just copy the 'front-xss-checker' folder into your project and link to it as a script tag:
<script src="./front-xss-checker/validate.js"></script>
After importing, you can just check any string for XSS attempts by using the function:
validateXSS("Your input string");
This function returns the matches against a current XSS-Payload list, so if it returns 0 the input is probably safe.
import {validateXSS} from 'validateXSS';
//The user input you want to check
const input = "<svg onload=alert(1)>";
const check = validateXSS(input);
if (check == 0) {
//check == 0 means the input is safe, so you can add it to your database
//db.insert(input)
} else {
console.log(`XSS! ${{check}});
}
Don't forget to add the script tag to your HTML:
validateXSS("Your input string");
//The user input you want to check
const input = "<svg onload=alert(1)>";
const check = validateXSS(input);
if (check == 0) {
//check == 0 means the input is safe, so you can add send it to the server
} else {
console.log(`XSS! ${{check}});
}
FAQs
This package tries to prevent cross-site scripting (XSS) by checking user input for malicious javascript!
We found that xss-checker demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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