Cyber Resilience

CVE-2021-23771

MediumPublic PoC

Published: 17 March 2022

Published
17 March 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0030 54.1th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-23771 is a medium-severity Prototype Pollution (CWE-1321) vulnerability in Argencoders-Notevil Project Argencoders-Notevil. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 45.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

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).

CWE(s)
CWE-1321

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

argencoders-notevil project
argencoders-notevil
≤ 2.5.0
notevil project
notevil
≤ 1.3.3

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References