{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "misp-modules",
          "vendor": "misp",
          "versions": [
            {
              "lessThanOrEqual": "3.0.5",
              "status": "affected"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Sami Mokaddem"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Maxime ESCOURBIAC from Michelin CERT"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An improper neutralization of input in the \u003ccode\u003econvert_markdown_to_pdf\u003c/code\u003e expansion module of MISP Modules allows an attacker who can supply Markdown to include \u003cstrong\u003eraw HTML blocks\u003c/strong\u003e that are preserved by Pandoc during Markdown-to-PDF conversion. When the PDF is generated, the embedded HTML may be interpreted by the rendering pipeline, resulting in \u003cstrong\u003eHTML injection into the produced PDF\u003c/strong\u003e and potentially \u003cstrong\u003eserver-side network requests and/or local file disclosure\u003c/strong\u003e depending on the configured PDF engine. This issue is fixed by sanitizing Pandoc AST \u003ccode\u003eRawBlock\u003c/code\u003e elements with HTML format into literal code blocks (commit \u003ccode\u003e6644c3d074d898492255e9de5f32a52667ac6d85\u003c/code\u003e)."
            }
          ],
          "value": "An improper neutralization of input in the convert_markdown_to_pdf expansion module of MISP Modules allows an attacker who can supply Markdown to include raw HTML blocks that are preserved by Pandoc during Markdown-to-PDF conversion. When the PDF is generated, the embedded HTML may be interpreted by the rendering pipeline, resulting in HTML injection into the produced PDF and potentially server-side network requests and/or local file disclosure depending on the configured PDF engine. This issue is fixed by sanitizing Pandoc AST RawBlock elements with HTML format into literal code blocks (commit 6644c3d074d898492255e9de5f32a52667ac6d85)."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "orgId": "00000000-0000-4000-9000-000000000000"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/MISP/MISP-modules/commit/6644c3d074d898492255e9de5f32a52667ac6d85"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Improper Neutralization of Raw HTML in MISP modules Markdown-to-PDF Module Leads to HTML Injection",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "00000000-0000-4000-9000-000000000000",
    "datePublished": "2026-02-27T13:10:24.641948Z",
    "dateUpdated": "2026-02-27T13:10:24.641948Z",
    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
    "state": "PUBLISHED",
    "vulnId": "gcve-1-2026-0017",
    "vulnerabilitylookup_history": [
      [
        "alexandre.dulaunoy@circl.lu",
        "2026-02-27T13:10:24.641948Z"
      ]
    ]
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}