GHSA-pqpp-2363-649v: Buttle Cross-Site Scripting Vulnerability

MODERATE
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CWE-79
Published
Advisory Summary

GHSA-pqpp-2363-649v is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Buttle libraries in the npm ecosystem. The issue involves cross-site scripting in buttle. Remediation is available in the latest vendor maintenance releases.

GHSA-pqpp-2363-649v at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-pqpp-2363-649v
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Buttle
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-pqpp-2363-649v

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

buttle fixed: Latest secure release 
npm install buttle@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 buttle

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-pqpp-2363-649v, inspect your project dependencies using npm:

npm ls buttle

Analyze the terminal output to locate any version of Buttle 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 buttle 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 Buttle, 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 `buttle` are vulnerable to Cross-Site Scripting. Due to misconfiguration of its rendering engine, `buttle` does not sanitize the HTML output allowing attackers to run arbitrary JavaScript when processing malicious markdown files. ## Recommendation No fix is currently available. Consider using an alternative module until a fix is made available.

GHSA-pqpp-2363-649v Affected Buttle Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
buttle
npm/buttle
npm

References

hackerone.com/reports/404126 WEB
https://hackerone.com/reports/404126
www.npmjs.com/advisories/810 WEB
https://www.npmjs.com/advisories/810

Frequently Asked Questions

What is GHSA-pqpp-2363-649v?
GHSA-pqpp-2363-649v is a security vulnerability in Buttle involving Cross-Site Scripting in buttle under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Buttle versions are affected?
Affected versions include releases prior to current release patches across affected packages: buttle.
What version fixes GHSA-pqpp-2363-649v?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is buttle affected?
Yes, buttle is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-pqpp-2363-649v?
GHSA-pqpp-2363-649v 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-pqpp-2363-649v?
Run the dependency tree command: 'npm ls buttle'. 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-pqpp-2363-649v",
  "modified" : "2020-08-31T18:36:36Z",
  "published" : "2020-09-02T18:22:30Z",
  "aliases" : [ ],
  "summary" : "Cross-Site Scripting in buttle",
  "details" : "All versions of `buttle` are vulnerable to Cross-Site Scripting. Due to misconfiguration of its rendering engine, `buttle` does not sanitize the HTML output allowing attackers to run arbitrary JavaScript when processing malicious markdown files.\n\n\n## Recommendation\n\nNo fix is currently available. Consider using an alternative module until a fix is made available.\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "buttle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/404126"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/810"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:36:36Z",
    "nvd_published_at" : null
  }
}