CVE-2024-53847: Trix Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-6vx4-v2jw-qwqh
Share
CWE-79
Published
Advisory Summary

CVE-2024-53847 is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Trix libraries in the npm ecosystem. The issue involves trix editor subject to xss vulnerabilities on copy & paste. Remediation is available by upgrading affected packages to version 2.1.9, 1.3.3.

CVE-2024-53847 at a Glance

CVE Identifier CVE-2024-53847
GHSA Identifier GHSA-6vx4-v2jw-qwqh
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Trix
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2024-53847

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

trix fixed: 2.1.9 
npm install trix@2.1.9
trix fixed: 1.3.3 
npm install trix@1.3.3
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 trix

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2024-53847, inspect your project dependencies using npm:

npm ls trix

Analyze the terminal output to locate any version of Trix in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.9), your application is affected.

Note: The npm ls trix 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 Trix, 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 Trix editor, in versions prior to 2.1.9 and 1.3.3, is vulnerable to XSS + mutation XSS attacks when pasting malicious code. ### Impact An attacker could trick a user to copy and paste malicious code that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed. ### Patches Update Recommendation: Users should upgrade to Trix editor version 2.1.9 or later, which uses [DOMPurify](https://github.com/cure53/DOMPurify) to sanitize the pasted content. If using Trix 1.x, upgrade to version 1.3.3 or later. ### Mitigations This is not really a workaround but something that should be considered in addition to upgrading to the patched version. If affected users can disallow browsers that don't support a Content Security Policy, then this would be an effective workaround for this and all XSS vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly prohibit inline scripts using script-src-elem. ### References The XSS vulnerability was reported by HackerOne researcher [hiumee](https://hackerone.com/hiumee?type=user). The mutation XSS vulnerability was reported by HackerOne researcher [sudi](https://hackerone.com/sudi?type=user).

CVE-2024-53847 Affected Trix Versions

2 component(s)
Fixed Versions:
2.1.91.3.3
Product / Package Ecosystem Affected Versions Fixed Version
trix
npm/trix
npm
≥ 2.0.0
< 2.1.9
2.1.9
trix
npm/trix
npm
≥ 1.0.0
< 1.3.3
1.3.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/basecamp/trix/security/advisories/GHSA-6vx4-v2jw-qwqh
NVD — CVE-2024-53847 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-53847
Security Fix Commit FIX COMMIT
https://github.com/basecamp/trix/commit/272c7e27e722608732a67108ad3fe7870e233ac8
Trix Source Repository REPOSITORY
https://github.com/basecamp/trix

Frequently Asked Questions

What is CVE-2024-53847?
CVE-2024-53847 is a security vulnerability in Trix involving Trix editor subject to XSS vulnerabilities on copy & paste under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Trix versions are affected?
Affected versions include releases prior to 2.1.9, 1.3.3 across affected packages: trix.
What version fixes CVE-2024-53847?
Upgrading to 2.1.9, 1.3.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is trix affected?
Yes, trix is affected in releases prior to 2.1.9, 1.3.3. Upgrade your dependency to 2.1.9, 1.3.3 or later.
What CWE is associated with CVE-2024-53847?
CVE-2024-53847 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-2024-53847?
Run the dependency tree command: 'npm ls trix'. 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-6vx4-v2jw-qwqh",
  "modified" : "2024-12-09T21:53:54Z",
  "published" : "2024-12-09T20:38:42Z",
  "aliases" : [ "CVE-2024-53847" ],
  "summary" : "Trix editor subject to XSS vulnerabilities on copy & paste",
  "details" : "The Trix editor, in versions prior to 2.1.9 and 1.3.3, is vulnerable to XSS + mutation XSS attacks when pasting malicious code.\n\n### Impact\n\nAn attacker could trick a user to copy and paste malicious code that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.\n\n### Patches\n\nUpdate Recommendation: Users should upgrade to Trix editor version 2.1.9 or later, which uses [DOMPurify](https://github.com/cure53/DOMPurify) to sanitize the pasted content. \n\nIf using Trix 1.x, upgrade to version 1.3.3 or later.\n\n### Mitigations\n\nThis is not really a workaround but something that should be considered in addition to upgrading to the patched version. If affected users can disallow browsers that don't support a Content Security Policy, then this would be an effective workaround for this and all XSS vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly prohibit inline scripts using script-src-elem.\n\n### References\n\nThe XSS vulnerability was reported by HackerOne researcher [hiumee](https://hackerone.com/hiumee?type=user).\nThe mutation XSS vulnerability was reported by HackerOne researcher [sudi](https://hackerone.com/sudi?type=user).\n\n",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "trix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.1.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "trix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0"
      }, {
        "fixed" : "1.3.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/basecamp/trix/security/advisories/GHSA-6vx4-v2jw-qwqh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-53847"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/basecamp/trix/commit/272c7e27e722608732a67108ad3fe7870e233ac8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/basecamp/trix"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-12-09T20:38:42Z",
    "nvd_published_at" : "2024-12-09T19:15:14Z"
  }
}