Vulnerabilities in pkg:npm/snekserve

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Advisory Summary

GHSA-hv4w-jhcj-6wfw is a HIGH cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Snekserve libraries in the npm ecosystem. The issue involves cross-site scripting in snekserve. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/snekserve

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/snekserve. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-hv4w-jhcj-6wfw - HIGH Cross-Site Scripting in snekserve

GHSA-hv4w-jhcj-6wfw at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-hv4w-jhcj-6wfw
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Snekserve
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-hv4w-jhcj-6wfw

To remediate this vulnerability, upgrade all affected Snekserve dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

snekserve fixed: Latest secure release 
npm install snekserve@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls snekserve

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-hv4w-jhcj-6wfw, inspect your project dependencies using npm:

npm ls snekserve

Analyze the terminal output to locate any version of Snekserve in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls snekserve command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Snekserve, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

All versions of `snekserve` are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize filenames, allowing attackers to execute arbitrary JavaScript in the victim's browser through files with names containing malicious code. ## Recommendation No fix is currently available. Consider using an alternative package until a fix is made available.

GHSA-hv4w-jhcj-6wfw Affected Snekserve Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
snekserve
npm/snekserve
npm
≥ 0.0.0

References

www.npmjs.com/advisories/1167 WEB
https://www.npmjs.com/advisories/1167

Frequently Asked Questions

What is GHSA-hv4w-jhcj-6wfw?
GHSA-hv4w-jhcj-6wfw is a security vulnerability in Snekserve involving Cross-Site Scripting in snekserve under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Snekserve versions are affected?
Affected versions include releases prior to current release patches across affected packages: snekserve.
What version fixes GHSA-hv4w-jhcj-6wfw?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is snekserve affected?
Yes, snekserve is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-hv4w-jhcj-6wfw?
GHSA-hv4w-jhcj-6wfw is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for GHSA-hv4w-jhcj-6wfw?
Run the dependency tree command: 'npm ls snekserve'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hv4w-jhcj-6wfw",
  "modified" : "2020-08-31T18:49:43Z",
  "published" : "2020-09-03T20:34:23Z",
  "aliases" : [ ],
  "summary" : "Cross-Site Scripting in snekserve",
  "details" : "All versions of `snekserve` are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize filenames, allowing attackers to execute arbitrary JavaScript in the victim's browser through files with names containing malicious code.\n\n\n## Recommendation\n\nNo fix is currently available. Consider using an alternative package until a fix is made available.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "snekserve"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1167"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:49:43Z",
    "nvd_published_at" : null
  }
}