CVE-2024-23724: Ghost Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-99vc-xw8j-phjm
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CVSS 6.5
CWE-79
Published
Advisory Summary

CVE-2024-23724 is a MODERATE (CVSS 6.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Ghost libraries in the npm ecosystem. The issue involves ghost has possible cross-site scripting issue. Remediation is available in the latest vendor maintenance releases.

CVE-2024-23724 at a Glance

CVE Identifier CVE-2024-23724
GHSA Identifier GHSA-99vc-xw8j-phjm
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Ghost
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.5

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:R/S:C/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2024-23724

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

ghost fixed: Latest secure release 
npm install ghost@Latest secure release
ghost fixed: Latest secure release 
npm install ghost@Latest secure release
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 ghost

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2024-23724, inspect your project dependencies using npm:

npm ls ghost

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

Note: The npm ls ghost 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 Ghost, 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

Ghost through 5.76.0 allows stored XSS, and resultant privilege escalation in which a contributor can take over any account, via an SVG profile picture that contains JavaScript code to interact with the API on localhost TCP port 3001. NOTE: The discoverer reports that "The vendor does not view this as a valid vector."

CVE-2024-23724 Affected Ghost Versions

2 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
ghost
npm/ghost
npm
≤ 5.76.0
ghost
npm/ghost
npm
≤ 5.76.0

References

NVD — CVE-2024-23724 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23724
Ghost Source Repository REPOSITORY
https://github.com/TryGhost/Ghost/pull/19646
Ghost Source Repository REPOSITORY
https://github.com/RhinoSecurityLabs/CVEs/tree/master/CVE-2024-23724
Ghost Source Repository REPOSITORY
https://github.com/TryGhost/Ghost
Ghost Security Information SECURITY
https://rhinosecuritylabs.com/blog

Frequently Asked Questions

What is CVE-2024-23724?
CVE-2024-23724 is a security vulnerability in Ghost involving Ghost has possible Cross-site Scripting issue under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Ghost versions are affected?
Affected versions include releases prior to current release patches across affected packages: ghost.
What version fixes CVE-2024-23724?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is ghost affected?
Yes, ghost is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2024-23724?
CVE-2024-23724 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.
What CWE is associated with CVE-2024-23724?
CVE-2024-23724 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-2024-23724?
Run the dependency tree command: 'npm ls ghost'. 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-99vc-xw8j-phjm",
  "modified" : "2024-09-05T16:14:25Z",
  "published" : "2024-02-11T03:30:17Z",
  "aliases" : [ "CVE-2024-23724" ],
  "summary" : "Ghost has possible Cross-site Scripting issue",
  "details" : "Ghost through 5.76.0 allows stored XSS, and resultant privilege escalation in which a contributor can take over any account, via an SVG profile picture that contains JavaScript code to interact with the API on localhost TCP port 3001. NOTE: The discoverer reports that \"The vendor does not view this as a valid vector.\"",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ghost"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.76.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ghost"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.76.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-23724"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TryGhost/Ghost/pull/19646"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/RhinoSecurityLabs/CVEs/tree/master/CVE-2024-23724"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TryGhost/Ghost"
  }, {
    "type" : "WEB",
    "url" : "https://rhinosecuritylabs.com/blog"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-12T19:35:28Z",
    "nvd_published_at" : "2024-02-11T01:15:08Z"
  }
}