BREW-MJML-CVE-2020-12827 (GHSA-4HCH-R9XF-6VFR)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:14 – Updated: 2026-09-12 09:36 – Source website
VLAI
Summary
MJML vulnerable to path traversal
Details

MJML prior to 4.6.3 contains a path traversal vulnerability when processing the mj-include directive within an MJML document.

Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "4.6.3"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "mjml",
        "purl": "pkg:brew/mjml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/mjml@5.4.1",
        "name": "mjml",
        "strategy": "registry",
        "subject_version": "5.4.1"
      }
    ]
  },
  "details": "MJML prior to 4.6.3 contains a path traversal vulnerability when processing the `mj-include` directive within an MJML document.",
  "id": "BREW-mjml-CVE-2020-12827",
  "modified": "2026-09-12T09:36:24Z",
  "published": "2026-08-13T17:14:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12827"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mjmlio/mjml/commit/30e29ed2cdaec8684d60a6d12ea07b611c765a12"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mjmlio/mjml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mjmlio/mjml/releases/tag/v4.6.3"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/158111/MJML-4.6.2-Path-Traversal.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2020/Jun/23"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MJML vulnerable to path traversal",
  "upstream": [
    "GHSA-4hch-r9xf-6vfr",
    "CVE-2020-12827"
  ]
}



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