GHSA-J386-3444-QGWG

Vulnerability from github – Published: 2025-01-03 16:29 – Updated: 2025-01-03 19:26
VLAI
Summary
Trix allows Cross-site Scripting via `javascript:` url in a link
Details

The Trix editor, versions prior to 2.1.11, is vulnerable to XSS when pasting malicious code in the link field.

Impact

An attacker could trick the user to copy&paste a malicious javascript: URL as a link 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.

See https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8

Patches

Update Recommendation: Users should upgrade to Trix editor version 2.1.12 or later.

Workarounds

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

https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8

Credits

This vulnerability was reported by Hackerone researcher https://hackerone.com/lio346?type=user

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "trix"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-21610"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-03T16:29:58Z",
    "nvd_published_at": "2025-01-03T17:15:09Z",
    "severity": "MODERATE"
  },
  "details": "The Trix editor, versions prior to 2.1.11, is vulnerable to XSS when pasting malicious code in the link field.\n\n### Impact\n\nAn attacker could trick the user to copy\u0026paste a malicious `javascript:` URL as a link that would execute arbitrary JavaScript code within the context of the user\u0027s session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.\n\nSee https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8\n\n### Patches\n\nUpdate Recommendation: Users should upgrade to Trix editor version 2.1.12 or later.\n\n### Workarounds\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\u0027t 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 \u0027self\u0027 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\nhttps://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8\n\n### Credits\n\nThis vulnerability was reported by Hackerone researcher https://hackerone.com/lio346?type=user",
  "id": "GHSA-j386-3444-qgwg",
  "modified": "2025-01-03T19:26:14Z",
  "published": "2025-01-03T16:29:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/basecamp/trix/security/advisories/GHSA-j386-3444-qgwg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21610"
    },
    {
      "type": "WEB",
      "url": "https://github.com/basecamp/trix/commit/180c8d337f18e1569cea6ef29b4d03ffff5b5faa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/basecamp/trix/commit/c4f0d6f80654603932af6685694f694e96593b93"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/basecamp/trix"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Trix allows Cross-site Scripting via `javascript:` url in a link"
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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