Vulnerabilities in pkg:npm/@quasar/quasar-ui-qmarkdown

PACKAGE
Advisory Identifier: GHSA-wm65-ph3w-587c
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Advisory Summary

CVE-2025-43954 is a MODERATE (CVSS 4.9) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting @quasar/quasar ui qmarkdown libraries in the npm ecosystem. The issue involves qmarkdown cross-site scripting (xss) vulnerability. Remediation is available by upgrading affected packages to version 2.0.5.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@quasar/quasar-ui-qmarkdown

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@quasar/quasar-ui-qmarkdown. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-wm65-ph3w-587c CVE-2025-43954 MODERATE QMarkdown Cross-Site Scripting (XSS) vulnerability

CVE-2025-43954 at a Glance

CVE Identifier CVE-2025-43954
GHSA Identifier GHSA-wm65-ph3w-587c
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product @quasar/quasar ui qmarkdown
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.9

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

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-43954

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

@quasar/quasar-ui-qmarkdown fixed: 2.0.5 
npm install @quasar/quasar-ui-qmarkdown@2.0.5
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 @quasar/quasar-ui-qmarkdown

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-43954, inspect your project dependencies using npm:

npm ls @quasar/quasar-ui-qmarkdown

Analyze the terminal output to locate any version of @quasar/quasar ui qmarkdown in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.5), your application is affected.

Note: The npm ls @quasar/quasar-ui-qmarkdown 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 @quasar/quasar ui qmarkdown, 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

QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.

CVE-2025-43954 Affected @quasar/quasar ui qmarkdown Versions

1 component(s)
Fixed Versions:
2.0.5
Product / Package Ecosystem Affected Versions Fixed Version
@quasar/quasar-ui-qmarkdown
npm/@quasar/quasar-ui-qmarkdown
npm
< 2.0.5
2.0.5

References

NVD — CVE-2025-43954 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-43954
Security Fix Commit FIX COMMIT
https://github.com/quasarframework/quasar-ui-qmarkdown/commit/b61dff84851c45369cf931db5bd93db177c657f6
@quasar/quasar ui qmarkdown Source Repository REPOSITORY
https://github.com/quasarframework/quasar-ui-qmarkdown
@quasar/quasar ui qmarkdown Source Repository REPOSITORY
https://github.com/quasarframework/quasar-ui-qmarkdown/compare/v2.0.4...v2.0.5

Frequently Asked Questions

What is CVE-2025-43954?
CVE-2025-43954 is a security vulnerability in @quasar/quasar ui qmarkdown involving QMarkdown Cross-Site Scripting (XSS) vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which @quasar/quasar ui qmarkdown versions are affected?
Affected versions include releases prior to 2.0.5 across affected packages: @quasar/quasar-ui-qmarkdown.
What version fixes CVE-2025-43954?
Upgrading to 2.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @quasar/quasar-ui-qmarkdown affected?
Yes, @quasar/quasar-ui-qmarkdown is affected in releases prior to 2.0.5. Upgrade your dependency to 2.0.5 or later.
What is the CVSS score of CVE-2025-43954?
CVE-2025-43954 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2025-43954?
CVE-2025-43954 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-2025-43954?
Run the dependency tree command: 'npm ls @quasar/quasar-ui-qmarkdown'. 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-wm65-ph3w-587c",
  "modified" : "2025-04-21T16:18:45Z",
  "published" : "2025-04-20T21:30:25Z",
  "aliases" : [ "CVE-2025-43954" ],
  "summary" : "QMarkdown Cross-Site Scripting (XSS) vulnerability",
  "details" : "QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@quasar/quasar-ui-qmarkdown"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-43954"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/quasarframework/quasar-ui-qmarkdown/commit/b61dff84851c45369cf931db5bd93db177c657f6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/quasarframework/quasar-ui-qmarkdown"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/quasarframework/quasar-ui-qmarkdown/compare/v2.0.4...v2.0.5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-21T16:18:45Z",
    "nvd_published_at" : "2025-04-20T19:15:43Z"
  }
}