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CVE-2020-28502

HighPublished

Arbitrary Code Injection

Published: Mar 5, 2021
Updated: Sep 16, 2024
Assigning CNA: snyk
Evidence observed: Aug 8, 2026

Primary CVSS

8.1/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

4.6%

Low · next 30 days

Percentile: 91.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

This affects the package xmlhttprequest before 1.7.0; all versions of package xmlhttprequest-ssl. Provided requests are sent synchronously (async=False on xhr.open), malicious user input flowing into xhr.send could result in arbitrary code being injected and run.

Sources

CVE-2020-28502PoC
CVE-2020-28502 node-XMLHttpRequest RCE
CVE-2020-28502PoC
Proof-of-concept exploit for CVE-2020-28502, demonstrating a specific vulnerability in a web application for security research and testing.

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