Vulnerabilities in pkg:npm/mrk.js

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Advisory Summary

GHSA-hpr5-wp7c-hh5q is a HIGH cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Mrk.js libraries in the npm ecosystem. The issue involves cross-site scripting in mrk.js. Remediation is available by upgrading affected packages to version 2.0.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/mrk.js

1 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-hpr5-wp7c-hh5q - HIGH Cross-Site Scripting in mrk.js

GHSA-hpr5-wp7c-hh5q at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-hpr5-wp7c-hh5q
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 Mrk.js
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-hpr5-wp7c-hh5q

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

mrk.js fixed: 2.0.1 
npm install mrk.js@2.0.1
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 mrk.js

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-hpr5-wp7c-hh5q, inspect your project dependencies using npm:

npm ls mrk.js

Analyze the terminal output to locate any version of Mrk.js in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.1), your application is affected.

Note: The npm ls mrk.js 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 Mrk.js, 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

Versions of `mrk.js` before 2.0.1 are vulnerable to cross-site scripting (XSS) when markdown is converted to HTML. ## Recommendation Update to version 2.0.1 or later and use `mark.sanitizeURL()` for any `src` and `href` attributes when extending the markdown.

GHSA-hpr5-wp7c-hh5q Affected Mrk.js Versions

1 component(s)
Fixed Versions:
2.0.1
Product / Package Ecosystem Affected Versions Fixed Version
mrk.js
npm/mrk.js
npm
< 2.0.1
2.0.1

References

Mrk.js Source Repository REPOSITORY
https://github.com/heyitsmeuralex/mrk/pull/3
Mrk.js Source Repository REPOSITORY
https://github.com/heyitsmeuralex/mrk
www.npmjs.com/advisories/587 WEB
https://www.npmjs.com/advisories/587

Frequently Asked Questions

What is GHSA-hpr5-wp7c-hh5q?
GHSA-hpr5-wp7c-hh5q is a security vulnerability in Mrk.js involving Cross-Site Scripting in mrk.js under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Mrk.js versions are affected?
Affected versions include releases prior to 2.0.1 across affected packages: mrk.js.
What version fixes GHSA-hpr5-wp7c-hh5q?
Upgrading to 2.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mrk.js affected?
Yes, mrk.js is affected in releases prior to 2.0.1. Upgrade your dependency to 2.0.1 or later.
What CWE is associated with GHSA-hpr5-wp7c-hh5q?
GHSA-hpr5-wp7c-hh5q 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-hpr5-wp7c-hh5q?
Run the dependency tree command: 'npm ls mrk.js'. 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-hpr5-wp7c-hh5q",
  "modified" : "2021-09-23T21:50:21Z",
  "published" : "2020-09-01T19:37:29Z",
  "aliases" : [ ],
  "summary" : "Cross-Site Scripting in mrk.js",
  "details" : "Versions of `mrk.js` before 2.0.1 are vulnerable to cross-site scripting (XSS) when markdown is converted to HTML.\n\n\n## Recommendation\n\nUpdate to version 2.0.1 or later and use `mark.sanitizeURL()` for any `src` and `href` attributes when extending the markdown.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "mrk.js"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/heyitsmeuralex/mrk/pull/3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/heyitsmeuralex/mrk"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/587"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:28:53Z",
    "nvd_published_at" : null
  }
}