What is the CVSS score of CVE-2020-7741?

CVE-2020-7741 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H. EPSS exploitation probability: 1.5%.

Is there a patch available for CVE-2020-7741?

Yes, a patch is available for CVE-2020-7741. Update the affected software to the latest version immediately.

Hello Js CVE-2020-7741

CRITICAL

Cross-site Scripting (XSS) (CWE-79)

2020-10-06 report@snyk.io

XSS Hello Js

9.9

CVSS 3.1 · Vendor: snyk

Severity by source

Vendor (snyk) PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

Primary rating from Vendor (snyk) · only source for this CVE.

CVSS VectorVendor: snyk

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

High

Lifecycle Timeline

CVE Published

Oct 06, 2020 - 15:15 cve.org

CRITICAL 9.9

DescriptionCVE.org

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).

AnalysisAI

This affects the package hellojs before 1.18.6. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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 products include: Hello.Js Project Hello.Js. Version information: before 1.18.6..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.