FKIE_CVE-2024-26151

Vulnerability from fkie_nvd - Published: 2024-02-22 19:15 - Updated: 2026-06-17 07:17
Severity
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
The `mjml` PyPI package, found at the `FelixSchwarz/mjml-python` GitHub repo, is an unofficial Python port of MJML, a markup language created by Mailjet. All users of `FelixSchwarz/mjml-python` who insert untrusted data into mjml templates unless that data is checked in a very strict manner. User input like `<script>` would be rendered as `<script>` in the final HTML output. The attacker must be able to control some data which is later injected in an mjml template which is then send out as email to other users. The attacker could control contents of email messages sent through the platform. The problem has been fixed in version 0.11.0 of this library. Versions before 0.10.0 are not affected by this security issue. As a workaround, ensure that potentially untrusted user input does not contain any sequences which could be rendered as HTML.
References
security-advisories@github.comhttps://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aaPatch
security-advisories@github.comhttps://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6Patch
security-advisories@github.comhttps://github.com/FelixSchwarz/mjml-python/issues/52Exploit, Issue Tracking
security-advisories@github.comhttps://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0Release Notes
security-advisories@github.comhttps://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-6229Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aaPatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/FelixSchwarz/mjml-python/issues/52Exploit, Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-6229Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/cve-2024-26151-mjml-python-vulnerability-1Exploit, Third Party Advisory
Impacted products
Vendor Product Version
felixschwarz mjml-python 0.10.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "mjml-python",
          "vendor": "FelixSchwarz",
          "versions": [
            {
              "status": "affected",
              "version": "= 0.10.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:felixschwarz:mjml-python:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "mjml-python",
          "vendor": "felixschwarz",
          "versions": [
            {
              "lessThan": "0.11.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:felixschwarz:mjml-python:0.10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "0C7B3A43-C31C-4105-8FC7-6220776CE487",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The `mjml` PyPI package, found at the `FelixSchwarz/mjml-python` GitHub repo, is an unofficial Python port of MJML, a markup language created by Mailjet. All users of `FelixSchwarz/mjml-python` who insert untrusted data into mjml templates unless that data is checked in a very strict manner. User input like `\u0026lt;script\u0026gt;` would be rendered as `\u003cscript\u003e` in the final HTML output. The attacker must be able to control some data which is later injected in an mjml template which is then send out as email to other users. The attacker could control contents of email messages sent through the platform. The problem has been fixed in version 0.11.0 of this library. Versions before 0.10.0 are not affected by this security issue. As a workaround, ensure that potentially untrusted user input does not contain any sequences which could be rendered as HTML."
    },
    {
      "lang": "es",
      "value": "El paquete PyPI `mjml`, que se encuentra en el repositorio de GitHub `FelixSchwarz/mjml-python`, es una versi\u00f3n Python no oficial de MJML, un lenguaje de marcado creado por Mailjet. Todos los usuarios de `FelixSchwarz/mjml-python` que insertan datos que no son de confianza en plantillas mjml a menos que esos datos se verifiquen de manera muy estricta. La entrada del usuario como `\u0026lt;script\u0026gt;` se representar\u00eda como `"
    }
  ],
  "id": "CVE-2024-26151",
  "lastModified": "2026-06-17T07:17:12.420",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.3,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-26151",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-22T20:16:11.731315Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-22T19:15:09.300",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aa"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/issues/52"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-6229"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aa"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/issues/52"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-6229"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.vicarius.io/vsociety/posts/cve-2024-26151-mjml-python-vulnerability-1"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.