CVE-2020-28502

Xmlhttprequest vulnerability

CVSS

8.1

EPSS

4.6%

EPSS pct

91th

Exploited

No known

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 vendor

Xmlhttprequest Project

Affected product

Xmlhttprequest

CVSS vector

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

Weakness type (CWE)

CWE-94 — Code Injection

Published

2021-03-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2020-28502

Confirm whether Xmlhttprequest Project Xmlhttprequest is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-28502.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-28502

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-28502 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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