What’s Vulnerable › Vulnerabilities

CVE-2020-28502: Arbitrary Code Injection

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-05 · updated 2026-06-17
• Weakness: CWE-94

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.

Affected products

• Xmlhttprequest Project Xmlhttprequest: before 1.7.0 — fixed in 1.7.0

How to fix

Upgrade to a fixed version: Xmlhttprequest Project Xmlhttprequest 1.7.0. Check the vendor advisory for mitigations.

References

• https://github.com/driverdan/node-XMLHttpRequest/blob/1.6.0/lib/XMLHttpRequest.js%23L480
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082937
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082938
• https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUEST-1082935
• https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUESTSSL-1082936
• https://github.com/driverdan/node-XMLHttpRequest/blob/1.6.0/lib/XMLHttpRequest.js%23L480
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082937
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1082938
• https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUEST-1082935
• https://snyk.io/vuln/SNYK-JS-XMLHTTPREQUESTSSL-1082936

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