Vulnerabilities in pkg:npm/markdown-nice

PACKAGE

Advisory Identifier: GHSA-462r-wxvm-jvxh

Advisory Summary

CVE-2022-38639 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Markdown nice libraries in the npm ecosystem. The issue involves markdown-nice v1.8.22 vulnerable to cross-site scripting. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)

Package Vulnerability Intelligence

pkg:npm/markdown-nice

1 Known Advisory Record(s)

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

Advisory ID	CVE / NVD	Severity	Summary
GHSA-462r-wxvm-jvxh	CVE-2022-38639	MODERATE	Markdown-Nice v1.8.22 vulnerable to Cross-site Scripting

CVE-2022-38639 at a Glance

CVE Identifier CVE-2022-38639

GHSA Identifier GHSA-462r-wxvm-jvxh

Severity MODERATE

CVSS v3.1 Base Score 5.4

CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Product Markdown nice

Package Ecosystem npm

Published Date 2022-09-10

Last Updated 2022-09-15

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)

Attack Complexity Low (AC:L)

Privileges Required Low (PR:L)

User Interaction Required (UI:R)

Scope Changed (S:C)

Confidentiality Low (C:L)

Integrity Low (I:L)

Availability None (A:N)

How to Fix CVE-2022-38639

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

markdown-nice fixed: Latest secure release

npm install markdown-nice@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 markdown-nice

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2022-38639, inspect your project dependencies using npm:

npm ls markdown-nice

Analyze the terminal output to locate any version of Markdown nice 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 markdown-nice 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 Markdown nice, 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

A cross-site scripting (XSS) vulnerability in Markdown-Nice v1.8.22 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Community Posting field.

CVE-2022-38639 Affected Markdown nice Versions

1 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
markdown-nice npm/markdown-nice	npm	≤ 1.8.22

References

NVD — CVE-2022-38639 NVD

https://nvd.nist.gov/vuln/detail/CVE-2022-38639

Markdown nice Source Repository REPOSITORY

https://github.com/mdnice/markdown-nice/issues/327

Markdown nice Source Repository REPOSITORY

https://github.com/mdnice/markdown-nice

Frequently Asked Questions

What is CVE-2022-38639?

CVE-2022-38639 is a security vulnerability in Markdown nice involving Markdown-Nice v1.8.22 vulnerable to Cross-site Scripting under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').

Which Markdown nice versions are affected?

Affected versions include releases prior to current release patches across affected packages: markdown-nice.

What version fixes CVE-2022-38639?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Is markdown-nice affected?

Yes, markdown-nice is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

What is the CVSS score of CVE-2022-38639?

CVE-2022-38639 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

What CWE is associated with CVE-2022-38639?

CVE-2022-38639 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 CVE-2022-38639?

Run the dependency tree command: 'npm ls markdown-nice'. 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-462r-wxvm-jvxh",
  "modified" : "2022-09-15T03:24:31Z",
  "published" : "2022-09-10T00:00:24Z",
  "aliases" : [ "CVE-2022-38639" ],
  "summary" : "Markdown-Nice v1.8.22 vulnerable to Cross-site Scripting",
  "details" : "A cross-site scripting (XSS) vulnerability in Markdown-Nice v1.8.22 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Community Posting field.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "markdown-nice"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.8.22"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-38639"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mdnice/markdown-nice/issues/327"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mdnice/markdown-nice"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-15T03:24:31Z",
    "nvd_published_at" : "2022-09-09T19:15:00Z"
  }
}

CVSS V3

5.4 MODERATE