CVE-2020-28502

mediumpriority · track · 44EPSS 0.046 · 92 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

4.63% (92nd) EPSS

CVSS 6.8 · medium

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · report@snyk.ioexploitability 2.2 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.17.7highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USprimaryCWE-94US

exploits (2)

Public proof-of-concept and weaponised exploit code.

dpredrag/CVE-2020-28502dpredrag/CVE-2020-28502PoC · poc_in_github
s-index/CVE-2020-28502CVE-2020-28502 node-XMLHttpRequest RCEPoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

Juniper JUNOSall versionscert_bundDEcpe:/o:juniper:junos:-
n/a xmlhttprequestunspecified → 1.7.0enisa_euvdEU
n/a xmlhttprequest-ssl0 → unspecifiedenisa_euvdEU
xmlhttprequest project xmlhttprequest< 1.7.0nvdUScpe:2.3:a:xmlhttprequest_project:xmlhttprequest:*:*:*:*:*:*:*:*
npm xmlhttprequest< 1.7.0osvUSpkg:npm/xmlhttprequest
npm xmlhttprequest-ssl< 1.6.2osvUSpkg:npm/xmlhttprequest-ssl

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.
GHSA-h4j5-c7cj-74xgxmlhttprequest and xmlhttprequest-ssl vulnerable to Arbitrary Code Injection2021-05-04ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-03-05modified 2026-06-17

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+10437 more

references (19)

External citations — patches, advisories, analysis.

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