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express-xss-sanitizer
Advanced tools
Readme
Express 4.x middleware which sanitizes user input data (in req.body, req.query, req.headers and req.params) to prevent Cross Site Scripting (XSS) attack.
$ npm install express-xss-sanitizer
Add as a piece of express middleware, before defining your routes.
const express = require('express');
const bodyParser = require('body-parser');
const { xss } = require('express-xss-sanitizer');
const app = express();
app.use(bodyParser.json({limit:'1kb'}));
app.use(bodyParser.urlencoded({extended: true, limit:'1kb'}));
app.use(xss());
You can add options to specify allowed keys or allowed attributes to be skipped at sanitization
const options = {
allowedKeys: ['name'],
allowedAttributes: {
input: ['value'],
},
}
app.use(xss(options));
You can add options to specify allowed tags to sanitize it and remove other tags
const options = {
allowedTags: ['h1']
}
app.use(xss(options));
Add as a piece of express middleware, before single route.
const express = require('express');
const bodyParser = require('body-parser');
const { xss } = require('express-xss-sanitizer');
const app = express();
app.use(bodyParser.json({limit:'1kb'}));
app.use(bodyParser.urlencoded({extended: true, limit:'1kb'}));
app.post("/body", xss(), function (req, res) {
// your code
});
app.post("/test", function (req, res) {
// your code
});
You also can sanitize your data (object, array, string,etc) on the fly.
const { sanitize } = require('express-xss-sanitizer');
// ...
data = sanitize(data)
// or
data = sanitize(data, {allowedKeys: ['name']})
// ...
To run the test suite, first install the dependencies, then run npm test
:
$ npm install
$ npm test
Feel free to open issues on github.
FAQs
Express 4.x middleware which sanitizes user input data (in req.body, req.query, req.headers and req.params) to prevent Cross Site Scripting (XSS) attack.
The npm package express-xss-sanitizer receives a total of 23,298 weekly downloads. As such, express-xss-sanitizer popularity was classified as popular.
We found that express-xss-sanitizer demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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