Vulnerabilities in pkg:npm/@ckeditor/ckeditor5-link

PACKAGE
Advisory Identifier: GHSA-gvpx-9459-w3mj
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Advisory Summary

CVE-2018-11093 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting @ckeditor/ckeditor5 link libraries in the npm ecosystem. The issue involves cross-site scripting in @ckeditor/ckeditor5-link. Remediation is available by upgrading affected packages to version 10.0.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@ckeditor/ckeditor5-link

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@ckeditor/ckeditor5-link. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-gvpx-9459-w3mj CVE-2018-11093 MODERATE Cross-Site Scripting in @ckeditor/ckeditor5-link

CVE-2018-11093 at a Glance

CVE Identifier CVE-2018-11093
GHSA Identifier GHSA-gvpx-9459-w3mj
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product @ckeditor/ckeditor5 link
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2018-11093

To remediate this vulnerability, upgrade all affected @ckeditor/ckeditor5 link dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@ckeditor/ckeditor5-link fixed: 10.0.1 
npm install @ckeditor/ckeditor5-link@10.0.1
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 @ckeditor/ckeditor5-link

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-11093, inspect your project dependencies using npm:

npm ls @ckeditor/ckeditor5-link

Analyze the terminal output to locate any version of @ckeditor/ckeditor5 link in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.0.1), your application is affected.

Note: The npm ls @ckeditor/ckeditor5-link 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 @ckeditor/ckeditor5 link, 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 `status-board` prior to 10.0.1 are vulnerable to Cross-Site Scripting. The `_createPreviewButton()` function fails to sanitize the `href` attribute of a created `<a>` tag. This may allow attackers to execute arbitrary JavaScript in a victim's browser. ## Recommendation Upgrade to version 10.0.1 or later.

CVE-2018-11093 Affected @ckeditor/ckeditor5 link Versions

1 component(s)
Fixed Versions:
10.0.1
Product / Package Ecosystem Affected Versions Fixed Version
@ckeditor/ckeditor5-link
npm/@ckeditor/ckeditor5-link
npm
≥ 0.3.0
< 10.0.1
10.0.1

References

NVD — CVE-2018-11093 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-11093
Security Fix Commit FIX COMMIT
https://github.com/ckeditor/ckeditor5-link/commit/8cb782eceba10fc481e4021cb5d25b2a85d1b04e
ckeditor.com/blog/ckeditor-5-v10... WEB
https://ckeditor.com/blog/CKEditor-5-v10.0.1-released
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-gvpx-9459-w3mj
@ckeditor/ckeditor5 link Source Repository REPOSITORY
https://github.com/ckeditor/ckeditor5-link
@ckeditor/ckeditor5 link Source Repository REPOSITORY
https://github.com/ckeditor/ckeditor5-link/blob/master/CHANGELOG.md#1001-2018-05-22
snyk.io/vuln/snyk-js-ckedit... WEB
https://snyk.io/vuln/SNYK-JS-CKEDITORCKEDITOR5LINK-72892
www.npmjs.com/advisories/1154 WEB
https://www.npmjs.com/advisories/1154

Frequently Asked Questions

What is CVE-2018-11093?
CVE-2018-11093 is a security vulnerability in @ckeditor/ckeditor5 link involving Cross-Site Scripting in @ckeditor/ckeditor5-link under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which @ckeditor/ckeditor5 link versions are affected?
Affected versions include releases prior to 10.0.1 across affected packages: @ckeditor/ckeditor5-link.
What version fixes CVE-2018-11093?
Upgrading to 10.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @ckeditor/ckeditor5-link affected?
Yes, @ckeditor/ckeditor5-link is affected in releases prior to 10.0.1. Upgrade your dependency to 10.0.1 or later.
What is the CVSS score of CVE-2018-11093?
CVE-2018-11093 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-11093?
CVE-2018-11093 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-2018-11093?
Run the dependency tree command: 'npm ls @ckeditor/ckeditor5-link'. 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-gvpx-9459-w3mj",
  "modified" : "2021-09-13T13:35:54Z",
  "published" : "2018-05-23T20:37:46Z",
  "aliases" : [ "CVE-2018-11093" ],
  "summary" : "Cross-Site Scripting in @ckeditor/ckeditor5-link",
  "details" : "Versions of `status-board` prior to 10.0.1 are vulnerable to Cross-Site Scripting. The `_createPreviewButton()` function fails to sanitize the `href` attribute of a created `<a>` tag. This may allow attackers to execute arbitrary JavaScript in a victim's browser.\n\n\n## Recommendation\n\nUpgrade to version 10.0.1 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@ckeditor/ckeditor5-link"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.3.0"
      }, {
        "fixed" : "10.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-11093"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ckeditor/ckeditor5-link/commit/8cb782eceba10fc481e4021cb5d25b2a85d1b04e"
  }, {
    "type" : "WEB",
    "url" : "https://ckeditor.com/blog/CKEditor-5-v10.0.1-released"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-gvpx-9459-w3mj"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ckeditor/ckeditor5-link"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ckeditor/ckeditor5-link/blob/master/CHANGELOG.md#1001-2018-05-22"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-CKEDITORCKEDITOR5LINK-72892"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1154"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:38:08Z",
    "nvd_published_at" : null
  }
}