Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
📦
📦 npm
Not in CISA KEV
MEDIUM severity

CVE-2021-23327 — apexcharts

MEDIUMFix: apexcharts/apexcharts.js@68f3f34

CVE-2021-23327 is a medium-severity (CVSS 6.3) Cross-site Scripting (XSS) vulnerability in apexcharts. 1 public exploit reference exists, so weaponization risk is real. A fix is available for apexcharts — see the affected versions and patch details below.

XSS in apexcharts

Also known asGHSA-w46j-8hm6-h8mm
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs71th percentile — riskier than 71% of all scored CVEsHighest risk
0.00%0.62%1.25%1.87%0.3%1.4%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2021-23327 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 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.

872other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
apexchartsnpm
2.1Mdownloads / week

Description

The package apexcharts before 3.24.0 are vulnerable to Cross-site Scripting (XSS) via lack of sanitization of graph legend fields.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmapexchartsall versions3.24.0npm install apexcharts@3.24.0

Affected Products

1 product · 1 configurations
Application
apexchartsfusioncharts
< 3.24.0
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.

The package apexcharts before 3.24.0 are vulnerable to Cross-site Script…

github.comNVDFeb 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update apexcharts to 3.24.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-23327 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

The package apexcharts before 3.24.0 are vulnerable to Cross-site Scripting (XSS) via lack of sanitization of graph legend fields.
O3 Security · Impact-Aware SCA

Is CVE-2021-23327 in your dependencies?

Find it across npm, including transitive dependencies.

Scan my dependencies How O3 SCA works
CVE-2021-23327: apexcharts XSS — Fixed in 3.24.0