Medium

statics-server Cross-site Scripting vulnerability

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 10:22

An XSS in statics-server <= 0.0.9 can be used via injected iframe in the filename when statics-server displays directory index in the browser. Statics-server does not implement any HTML escaping when displays directory index in the browser. Variable v is used in <a href> element without escaping, which allows to embed HTML <iframe> tag with src attribute points to another HTML file in the directory. This file can contain malicious JavaScript code, which will be executed:

js
// ./node_modules/statics-server/index.js, line 18:

    if(fs.lstatSync(staticPath).isDirectory()){
        var files=fs.readdirSync(staticPath);
        var lis='';
        files.forEach((v,i)=>{
            if(fs.lstatSync(path.resolve(staticPath,v)).isDirectory()){
                lis+=`<li><a href="${req.url}${v}/">${v}/</a></li>`;
            }else {
                lis+=`<li><a href="${req.url}${v}">${v}</a></li>`
            }
        });

        (...)

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package statics-server <= 0.0.9 no fix

References

CVSS score 6.1/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
npm
Package
statics-server
Disclosed
13.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-393x-fr59-r8fg - CC BY 4.0

Vulnerability history: statics-server

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
3
First → latest
06.2019 05.2022
Without a fix
3
Exploited in attacks
0

Severity breakdown

  • Medium 3

Disclosures per year

  1. 2019: 1
  2. 2020: 1
  3. 2021: 0
  4. 2022: 1
  5. 2023: 0
  6. 2024: 0
  7. 2025: 0
  8. 2026: 0
  1. statics-server Cross-site Scripting vulnerability this entry
    Medium · 6.1 CVE-2018-3771 <= 0.0.9 no fix
  2. Medium CVE-2019-15596 <= 0.0.9 no fix
  3. Medium ghsa-74cp-qw7f-7hpw <= 0.0.9 no fix

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Free to subscribe. Unsubscribe with one click in any email.