GHSA-cr56-66mx-293v: @toast ui/editor Cross-Site Scripting Vulnerability

HIGH
Share
CWE-79
Published
Advisory Summary

GHSA-cr56-66mx-293v is a HIGH cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting @toast ui/editor libraries in the npm ecosystem. The issue involves cross-site scripting in @toast-ui/editor. Remediation is available by upgrading affected packages to version 2.2.0.

GHSA-cr56-66mx-293v at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-cr56-66mx-293v
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 @toast ui/editor
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-cr56-66mx-293v

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

@toast-ui/editor fixed: 2.2.0 
npm install @toast-ui/editor@2.2.0
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 @toast-ui/editor

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-cr56-66mx-293v, inspect your project dependencies using npm:

npm ls @toast-ui/editor

Analyze the terminal output to locate any version of @toast ui/editor in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.2.0), your application is affected.

Note: The npm ls @toast-ui/editor 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 @toast ui/editor, 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 `@toast-ui/editor` prior to 2.2.0 are vulnerable to Cross-Site Scripting (XSS). There are multiple bypasses to the package's built-in XSS sanitization. This may allow attackers to execute arbitrary JavaScript on a victim's browser. ## Recommendation Upgrade to version 2.2.0 or later.

GHSA-cr56-66mx-293v Affected @toast ui/editor Versions

1 component(s)
Fixed Versions:
2.2.0
Product / Package Ecosystem Affected Versions Fixed Version
@toast-ui/editor
npm/@toast-ui/editor
npm
< 2.2.0
2.2.0

References

@toast ui/editor Source Repository REPOSITORY
https://github.com/nhn/tui.editor/issues/733
@toast ui/editor Source Repository REPOSITORY
https://github.com/nhn/tui.editor/pull/1010
Security Fix Commit FIX COMMIT
https://github.com/nhn/tui.editor/commit/5f62f5eeda9e8f8bcf2075e8e0e10d22bf56d1a7
@toast ui/editor Source Repository REPOSITORY
https://github.com/nhn/tui.editor
www.npmjs.com/advisories/1521 WEB
https://www.npmjs.com/advisories/1521

Frequently Asked Questions

What is GHSA-cr56-66mx-293v?
GHSA-cr56-66mx-293v is a security vulnerability in @toast ui/editor involving Cross-Site Scripting in @toast-ui/editor under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which @toast ui/editor versions are affected?
Affected versions include releases prior to 2.2.0 across affected packages: @toast-ui/editor.
What version fixes GHSA-cr56-66mx-293v?
Upgrading to 2.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @toast-ui/editor affected?
Yes, @toast-ui/editor is affected in releases prior to 2.2.0. Upgrade your dependency to 2.2.0 or later.
What CWE is associated with GHSA-cr56-66mx-293v?
GHSA-cr56-66mx-293v 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-cr56-66mx-293v?
Run the dependency tree command: 'npm ls @toast-ui/editor'. 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-cr56-66mx-293v",
  "modified" : "2021-10-04T21:12:14Z",
  "published" : "2020-09-03T15:53:50Z",
  "aliases" : [ ],
  "summary" : "Cross-Site Scripting in @toast-ui/editor",
  "details" : "Versions of `@toast-ui/editor` prior to 2.2.0 are vulnerable to Cross-Site Scripting (XSS).  There are multiple bypasses to the package's built-in XSS sanitization. This may allow attackers to execute arbitrary JavaScript on a victim's browser.\n\n## Recommendation\n\nUpgrade to version 2.2.0 or later.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@toast-ui/editor"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nhn/tui.editor/issues/733"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nhn/tui.editor/pull/1010"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nhn/tui.editor/commit/5f62f5eeda9e8f8bcf2075e8e0e10d22bf56d1a7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nhn/tui.editor"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1521"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T19:02:06Z",
    "nvd_published_at" : null
  }
}