PT-2021-13767 · Purl · Purl

CVE-2021-20089 · Published 2021-04-23 · Updated 2023-08-08

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: purl version 2.3.2

Description: The issue is related to Improperly Controlled Modification of Object Prototype Attributes, also known as 'Prototype Pollution'. This allows a malicious user to inject properties into Object.prototype.

Recommendations: For purl version 2.3.2, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Prototype Pollution

Weakness Enumeration

CWE-1321

Related Identifiers

CVE-2021-20089

Affected Products

Purl

References · 5

• 🔥 https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/purl.md · Exploit
• https://osv.dev/vulnerability/CVE-2021-20089 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20089 · Security Note
• https://t.me/cvenotify/13611 · Telegram Post
• https://t.me/cvenotify/14003 · Telegram Post