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CVE-2021-4264— LinkedIn dustjs prototype pollution

Quick assessment

Affected
LinkedIn dustjs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dust.js是LinkedIn开源的一个用于浏览器和服务器的异步 Javascript 模板。 Dust.js 3.0.0版本存在安全漏洞，该漏洞源于一些未知功能，操纵导致对象原型属性的修改控制不当（“原型污染”）。

CVSS 6.3 · Medium EPSS 1.08% · P63

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4264

Vulnerability Information
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Vulnerability Title
LinkedIn dustjs prototype pollution
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in LinkedIn dustjs up to 2.x and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0 is able to address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
Dust.js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dust.js是LinkedIn开源的一个用于浏览器和服务器的异步 Javascript 模板。 Dust.js 3.0.0版本存在安全漏洞，该漏洞源于一些未知功能，操纵导致对象原型属性的修改控制不当（“原型污染”）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
LinkedIn dustjs 2.x -

II. Public POCs for CVE-2021-4264

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III. Intelligence Information for CVE-2021-4264

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Patches & Fixes for CVE-2021-4264 (2)

Vendor Advisories for CVE-2021-4264 (2)

Other References for CVE-2021-4264 (2)

IV. Related Vulnerabilities

Same weakness: CWE-1321

V. Comments for CVE-2021-4264

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