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MEDIUM severity

CVE-2019-15607 — node-red

MEDIUM

CVE-2019-15607 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in node-red. 1 public exploit reference exists, so weaponization risk is real. A fix is available for node-red — see the affected versions and patch details below.

Cross-Site Scripting in node-red

Also known asGHSA-8w65-xjc5-9w79
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs49th percentile — riskier than 49% of all scored CVEsHighest risk
0.00%0.38%0.76%1.14%0.2%0.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2019-15607 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,987 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

236other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
node-rednpm
55Kdownloads / week

Description

Versions of node-red prior to 0.20.8are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize the name field in new Flows, allowing attackers to execute arbitrary JavaScript in the victim's browser.

Recommendation

Upgrade to version 0.18.6 or later.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmnode-redall versions0.20.8npm install node-red@0.20.8

Affected Products

1 product · 1 configurations
Application
node-rednodered
≤ 0.20.7
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

A stored XSS vulnerability is present within node-red (version: <= 0.20.…

hackerone.comNVDJan 2020

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-red, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update node-red to 0.20.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-15607 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Versions of `node-red` prior to 0.20.8are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize the `name` field in new Flows, allowing attackers to execute arbitrary JavaScript in the victim's browser. ## Recommendation Upgrade to version 0.18.6 or later.
O3 Security · Impact-Aware SCA

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CVE-2019-15607: node-red XSS — Fixed in 0.20.8