XSS in Hello.js Project
CVE-2020-7741
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).
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.015 (71.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H.
Affected products
- Hello.js_project Hello.js
- N/a Hellojs — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- report@snyk.io (Third Party Advisory, x_refsource_MISC)
- report@snyk.io (x_refsource_MISC, Broken Link)
- report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-7741?
- CVE-2020-7741 is a critical-severity vulnerability in Hello.js Project, classified under Cross-site Scripting. CVSS score: 9.9/10. Published 2020-10-06.
- How severe is CVE-2020-7741?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2020-7741 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.