FKIE_CVE-2026-53468

Vulnerability from fkie_nvd - Published: 2026-08-21 22:16 - Updated: 2026-10-14 19:10
Severity
4.6 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Summary
Typemill is a flat-file, Markdown-based content management system designed for informational documentation websites. Versions prior to 2.23.0 are vulnerable to stored HTML attribute injection in the page metadata fields (`og:title` and `og:description`). An authenticated user with permission to modify page metadata can inject arbitrary HTML attributes into generated `<meta>` tags due to missing output encoding. Under certain browser or DOM interaction scenarios, this may lead to stored cross-site scripting (XSS). Version 2.23.0 fixes the issue.
References
security-advisories@github.comhttps://github.com/typemill/typemill/releases/tag/v2.23.0
security-advisories@github.comhttps://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "typemill",
          "vendor": "typemill",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.23.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Typemill is a flat-file, Markdown-based content management system designed for informational documentation websites. Versions prior to 2.23.0 are vulnerable to stored HTML attribute injection in the page metadata fields (`og:title` and `og:description`). An authenticated user with permission to modify page metadata can inject arbitrary HTML attributes into generated `\u003cmeta\u003e` tags due to missing output encoding. Under certain browser or DOM interaction scenarios, this may lead to stored cross-site scripting (XSS). Version 2.23.0 fixes the issue."
    },
    {
      "lang": "es",
      "value": "Typemill es un sistema de gesti\u00f3n de contenido de archivo plano, basado en Markdown, dise\u00f1ado para sitios web de documentaci\u00f3n informativa. Las versiones anteriores a la 2.23.0 son vulnerables a la inyecci\u00f3n de atributos HTML almacenados en los campos de metadatos de la p\u00e1gina (\u0027og:title\u0027 y \u0027og:description\u0027). Un usuario autenticado con permiso para modificar los metadatos de la p\u00e1gina puede inyectar atributos HTML arbitrarios en las etiquetas \u0027\u003cmeta\u003e\u0027 generadas debido a la falta de codificaci\u00f3n de salida. Bajo ciertos escenarios de interacci\u00f3n del navegador o del DOM, esto puede conducir a cross-site scripting (XSS) almacenado. La versi\u00f3n 2.23.0 corrige el problema."
    }
  ],
  "id": "CVE-2026-53468",
  "lastModified": "2026-10-14T19:10:00.297",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.6,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53468",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T19:38:07.139955Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T22:16:38.570",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/typemill/typemill/releases/tag/v2.23.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/typemill/typemill/security/advisories/GHSA-wg6r-jwmr-p7gr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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