CVE-2020-28502

Name: CVE-2020-28502
Creator: NVD / NIST
Published: 2021-03-05T18:15:12.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 4.65%

Last modified Jun 17, 2026

CVE-2020-28502 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 4.65% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

4.65%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Xmlhttprequest Project	Xmlhttprequest	< 1.7.0

References

https://github.com/driverdan/node-XMLHttpRequest/blob/1.6.0/lib/XMLHttpRequest.js%23L480Broken Link
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082937Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082938Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUEST-1082935Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUESTSSL-1082936Exploit, Third Party Advisory
https://github.com/driverdan/node-XMLHttpRequest/blob/1.6.0/lib/XMLHttpRequest.js%23L480Broken Link
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082937Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082938Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUEST-1082935Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUESTSSL-1082936Exploit, Third Party Advisory

Timeline

Published: Mar 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28502?

How severe is CVE-2020-28502?

CVE-2020-28502 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 4.65% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28502?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28502?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST