Vulnerabilities in pkg:npm/@lumieducation/h5p-server

PACKAGE
Advisory Identifier: GHSA-m7gm-v253-56hh
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Advisory Summary

CVE-2025-47828 is a MODERATE (CVSS 6.4) @lumieducation/h5p-server fails to sanitize plain vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting @lumieducation/h5p server libraries in the npm ecosystem. The issue involves @lumieducation/h5p-server fails to sanitize plain text strings. Remediation is available by upgrading affected packages to version 9.3.3.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@lumieducation/h5p-server

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@lumieducation/h5p-server. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-m7gm-v253-56hh CVE-2025-47828 MODERATE @lumieducation/h5p-server Fails to Sanitize Plain Text Strings

CVE-2025-47828 at a Glance

CVE Identifier CVE-2025-47828
GHSA Identifier GHSA-m7gm-v253-56hh
Severity MODERATE
CVSS v3.1 Base Score 6.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product @lumieducation/h5p server
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.4

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:N/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 None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-47828

To remediate this vulnerability, upgrade all affected @lumieducation/h5p server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@lumieducation/h5p-server fixed: 9.3.3 
npm install @lumieducation/h5p-server@9.3.3
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 @lumieducation/h5p-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-47828, inspect your project dependencies using npm:

npm ls @lumieducation/h5p-server

Analyze the terminal output to locate any version of @lumieducation/h5p server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.3.3), your application is affected.

Note: The npm ls @lumieducation/h5p-server 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 @lumieducation/h5p server, 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

Lumi H5P-Nodejs-library before 9.3.3 omits a sanitizeHtml call for plain text strings.

CVE-2025-47828 Affected @lumieducation/h5p server Versions

1 component(s)
Fixed Versions:
9.3.3
Product / Package Ecosystem Affected Versions Fixed Version
@lumieducation/h5p-server
npm/@lumieducation/h5p-server
npm
< 9.3.3
9.3.3

References

NVD — CVE-2025-47828 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-47828
@lumieducation/h5p server Source Repository REPOSITORY
https://github.com/Lumieducation/H5P-Nodejs-library/pull/3894
@lumieducation/h5p server Source Repository REPOSITORY
https://github.com/Lumieducation/H5P-Nodejs-library
@lumieducation/h5p server Source Repository REPOSITORY
https://github.com/Lumieducation/H5P-Nodejs-library/compare/v9.3.2...v9.3.3

Frequently Asked Questions

What is CVE-2025-47828?
CVE-2025-47828 is a security vulnerability in @lumieducation/h5p server involving @lumieducation/h5p-server Fails to Sanitize Plain Text Strings under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which @lumieducation/h5p server versions are affected?
Affected versions include releases prior to 9.3.3 across affected packages: @lumieducation/h5p-server.
What version fixes CVE-2025-47828?
Upgrading to 9.3.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @lumieducation/h5p-server affected?
Yes, @lumieducation/h5p-server is affected in releases prior to 9.3.3. Upgrade your dependency to 9.3.3 or later.
What is the CVSS score of CVE-2025-47828?
CVE-2025-47828 has a CVSS v3.1 base score of 6.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2025-47828?
CVE-2025-47828 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-2025-47828?
Run the dependency tree command: 'npm ls @lumieducation/h5p-server'. 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-m7gm-v253-56hh",
  "modified" : "2025-05-12T20:50:07Z",
  "published" : "2025-05-11T03:30:28Z",
  "aliases" : [ "CVE-2025-47828" ],
  "summary" : "@lumieducation/h5p-server Fails to Sanitize Plain Text Strings",
  "details" : "Lumi H5P-Nodejs-library before 9.3.3 omits a sanitizeHtml call for plain text strings.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@lumieducation/h5p-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.3.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-47828"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Lumieducation/H5P-Nodejs-library/pull/3894"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Lumieducation/H5P-Nodejs-library"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Lumieducation/H5P-Nodejs-library/compare/v9.3.2...v9.3.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-12T20:50:07Z",
    "nvd_published_at" : "2025-05-11T03:15:23Z"
  }
}