Vulnerability · Published Oct 6, 2020 · Assigned by snyk
CVE-2020-7741Cross-site Scripting (XSS)
Critical 9.9
In plain English
A critical-severity security flaw in hellojs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)1.5%top 26.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
This affects the package hellojs before 1.18.6. The code get the param oauth_redirect from url and pass it to location.assign without any check and sanitisation. So we can simply pass some XSS payloads into the url param oauth_redirect, such as javascript:alert(1).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | hellojs | 1.18.6 | GHSA-7jh9-6cpf-h4m7 |