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CVE-2021-23771

6.5 · MEDIUM

This affects all versions of package notevil; all versions of package argencoders-notevil.

Published Mar 17, 2022CWE-1321EPSS 1.01%

Overview

CVE-2021-23771 is a medium-severity vulnerability. It was published on March 17, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

This affects all versions of package notevil; all versions of package argencoders-notevil. It is vulnerable to Sandbox Escape leading to Prototype pollution. The package fails to restrict access to the main context, allowing an attacker to add or modify an object's prototype. **Note:** This vulnerability derives from an incomplete fix in [SNYK-JS-NOTEVIL-608878](https://security.snyk.io/vuln/SNYK-JS-NOTEVIL-608878).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsnyk.io/vuln/SNYK-JS-ARGENCODERSNOTEVIL-2388587Refsnyk.io/vuln/SNYK-JS-NOTEVIL-2385946Refsnyk.io/vuln/SNYK-JS-ARGENCODERSNOTEVIL-2388587Refsnyk.io/vuln/SNYK-JS-NOTEVIL-2385946

How CyberStrike helps

Frequently asked questions

What is CVE-2021-23771?

CVE-2021-23771 is a medium-severity vulnerability. It was published on March 17, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-23771?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-23771?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-23771?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-23771 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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