You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
{{ message }}
This repository has been archived by the owner on Mar 1, 2024. It is now read-only.
Incorrect hostname / protocol due to unstripped leading control characters. Leading control characters in a URL are not stripped when passed into url-parse. This can cause input URLs to be mistakenly be interpreted as a relative URL without a hostname and protocol, while the WHATWG URL parser will trim control characters and treat it as an absolute URL. If url-parse is used in security decisions involving the hostname / protocol, and the input URL is used in a client which uses the WHATWG URL parser, the decision may be incorrect. This can also lead to a cross-site scripting (XSS) vulnerability if url-parse is used to check for the javascript: protocol in URLs. See following example: const parse = require('url-parse') const express = require('express') const app = express() const port = 3000 url = parse(\"\\bjavascript:alert(1)\") console.log(url) app.get('/', (req, res) => { if (url.protocol !== \"javascript:\") {res.send(\"[CLICK ME!](file://%27/%22)\")} }) app.listen(port, () => { console.log(`Example app listening on port ${port}`) })
The text was updated successfully, but these errors were encountered:
Incorrect hostname / protocol due to unstripped leading control characters. Leading control characters in a URL are not stripped when passed into url-parse. This can cause input URLs to be mistakenly be interpreted as a relative URL without a hostname and protocol, while the WHATWG URL parser will trim control characters and treat it as an absolute URL. If url-parse is used in security decisions involving the hostname / protocol, and the input URL is used in a client which uses the WHATWG URL parser, the decision may be incorrect. This can also lead to a cross-site scripting (XSS) vulnerability if url-parse is used to check for the javascript: protocol in URLs. See following example:
const parse = require('url-parse') const express = require('express') const app = express() const port = 3000 url = parse(\"\\bjavascript:alert(1)\") console.log(url) app.get('/', (req, res) => { if (url.protocol !== \"javascript:\") {res.send(\"[CLICK ME!](file://%27/%22)\")} }) app.listen(port, () => { console.log(`Example app listening on port ${port}`) })
The text was updated successfully, but these errors were encountered: