Vulnerabilities in pkg:npm/ckeditor-dev

PACKAGE
Advisory Identifier: GHSA-g78h-pf65-46rv
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Advisory Summary

CVE-2018-9861 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Drupal/core libraries in the Packagist ecosystem. The issue involves enhanced image plugin for ckeditor is vulnerable to cross-site scripting (xss). Remediation is available by upgrading affected packages to version 8.5.2, 4.9.2, 8.4.7.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/ckeditor-dev

1 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-g78h-pf65-46rv CVE-2018-9861 MODERATE Enhanced Image plugin for CKEditor is vulnerable to Cross-site scripting (XSS)

CVE-2018-9861 at a Glance

CVE Identifier CVE-2018-9861
GHSA Identifier GHSA-g78h-pf65-46rv
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 Drupal/core
Package Ecosystem Packagist
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:3.0/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-2018-9861

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

drupal/core fixed: 8.5.2 
Upgrade drupal/core to 8.5.2
ckeditor-dev fixed: 4.9.2 
npm install ckeditor-dev@4.9.2
drupal/core fixed: 8.4.7 
Upgrade drupal/core to 8.4.7
drupal/drupal fixed: 8.4.7 
Upgrade drupal/drupal to 8.4.7
drupal/drupal fixed: 8.5.2 
Upgrade drupal/drupal to 8.5.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for drupal/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-9861, inspect your project dependencies for Drupal/core:

inspect dependencies for drupal/core

Analyze the terminal output to locate any version of Drupal/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.5.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

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 Drupal/core, 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

The Enhanced Image (aka [image2](https://github.com/ckeditor/ckeditor4/tree/master/plugins/image2)) plugin for CKEditor in versions 4.5.10 through 4.9.1; fixed in 4.9.2, and as used in Drupal 8 before 8.4.7 and 8.5.x before 8.5.2 and other products, is vulnerable to cross-site scripting because it allows remote attackers to inject arbitrary web script through a crafted IMG element.

CVE-2018-9861 Affected Drupal/core Versions

5 component(s)
Fixed Versions:
8.5.24.9.28.4.7
Product / Package Ecosystem Affected Versions Fixed Version
drupal/core
 Packagist
≥ 8.5.0
< 8.5.2
8.5.2
ckeditor-dev
npm/ckeditor-dev
npm
≥ 4.5.10
< 4.9.2
4.9.2
drupal/core
 Packagist
≥ 8.0
< 8.4.7
8.4.7
drupal/drupal
 Packagist
≥ 8.0
< 8.4.7
8.4.7
drupal/drupal
 Packagist
≥ 8.5
< 8.5.2
8.5.2

References

NVD — CVE-2018-9861 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-9861
Drupal/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2018-9861.yaml
Drupal/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2018-9861.yaml
Drupal/core Source Repository REPOSITORY
https://github.com/ckeditor/ckeditor-dev/blob/master/CHANGES.md
www.drupal.org/sa-core-2018-003 WEB
https://www.drupal.org/sa-core-2018-003
Drupal/core Security Information SECURITY
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
Drupal/core Security Information SECURITY
http://www.securityfocus.com/bid/103924

Frequently Asked Questions

What is CVE-2018-9861?
CVE-2018-9861 is a security vulnerability in Drupal/core involving Enhanced Image plugin for CKEditor is vulnerable to Cross-site scripting (XSS) under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Drupal/core versions are affected?
Affected versions include releases prior to 8.5.2, 4.9.2, 8.4.7 across affected packages: drupal/core, ckeditor-dev, drupal/drupal.
What version fixes CVE-2018-9861?
Upgrading to 8.5.2, 4.9.2, 8.4.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/core affected?
Yes, drupal/core is affected in releases prior to 8.5.2, 8.4.7. Upgrade your dependency to 8.5.2, 8.4.7 or later.
Is ckeditor-dev affected?
Yes, ckeditor-dev is affected in releases prior to 4.9.2. Upgrade your dependency to 4.9.2 or later.
What is the CVSS score of CVE-2018-9861?
CVE-2018-9861 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-9861?
CVE-2018-9861 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 Packagist dependencies for CVE-2018-9861?
Run the dependency tree command: 'inspect dependencies for drupal/core'. 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-g78h-pf65-46rv",
  "modified" : "2023-10-19T18:50:44Z",
  "published" : "2022-05-14T00:56:02Z",
  "aliases" : [ "CVE-2018-9861" ],
  "summary" : "Enhanced Image plugin for CKEditor is vulnerable to Cross-site scripting (XSS)",
  "details" : "The Enhanced Image (aka [image2](https://github.com/ckeditor/ckeditor4/tree/master/plugins/image2)) plugin for CKEditor in versions 4.5.10 through 4.9.1; fixed in 4.9.2, and as used in Drupal 8 before 8.4.7 and 8.5.x before 8.5.2 and other products, is vulnerable to cross-site scripting because it allows remote attackers to inject arbitrary web script through a crafted IMG element.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5.0"
      }, {
        "fixed" : "8.5.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ckeditor-dev"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.5.10"
      }, {
        "fixed" : "4.9.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0"
      }, {
        "fixed" : "8.4.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0"
      }, {
        "fixed" : "8.4.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/drupal"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.5"
      }, {
        "fixed" : "8.5.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-9861"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2018-9861.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2018-9861.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ckeditor/ckeditor-dev/blob/master/CHANGES.md"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-core-2018-003"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/103924"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-19T18:50:44Z",
    "nvd_published_at" : "2018-04-19T17:29:00Z"
  }
}