VULNERABILITY INTELLIGENCE

CVE-2021-20089

CVSS score8.8 HIGH

EPSS probability1.61%

CISA KEVNot currently listed

Published2021-04-23

Last modified2026-06-17

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

Description

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in purl 2.3.2 allows a malicious user to inject properties into Object.prototype.

Weakness classification

nvd@nist.gov: CWE-1321

Primary references

vulnreport@tenable.com — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory