github - ghsa-qghr-877h-f9jh

GHSA-QGHR-877H-F9JH

Vulnerability from github – Published: 2023-04-05 00:30 – Updated: 2025-02-13 18:51

Summary

markdown-pdf vulnerable to local file read via server side cross-site scripting (XSS)

Details

markdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "markdown-pdf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "11.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-0835"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-05T17:55:20Z",
    "nvd_published_at": "2023-04-04T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "markdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user.",
  "id": "GHSA-qghr-877h-f9jh",
  "modified": "2025-02-13T18:51:56Z",
  "published": "2023-04-05T00:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0835"
    },
    {
      "type": "WEB",
      "url": "https://fluidattacks.com/advisories/relsb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/alanshaw/markdown-pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/markdown-pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "markdown-pdf vulnerable to local file read via server side cross-site scripting (XSS)"
}

CVE-2023-0835 (GCVE-0-2023-0835)

Vulnerability from cvelistv5 – Published: 2023-04-04 00:00 – Updated: 2025-12-03 20:12

Summary

markdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user.

Severity ?

8.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

CWE

Server Side XSS

Assigner

Fluid Attacks

References

URL

Tags

	https://fluidattacks.com/advisories/relsb/
	https://www.npmjs.com/package/markdown-pdf/

Impacted products

	Vendor	Product	Version
	n/a	markdown-pdf	Affected: 11.0.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T05:24:34.504Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://fluidattacks.com/advisories/relsb/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.npmjs.com/package/markdown-pdf/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.2,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-0835",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-13T15:57:09.365845Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-13T15:58:16.422Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://registry.npmjs.org",
          "defaultStatus": "unaffected",
          "packageName": "markdown-pdf",
          "product": "markdown-pdf",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "11.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003emarkdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user.\u003c/p\u003e"
            }
          ],
          "value": "markdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Server Side XSS",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-03T20:12:39.525Z",
        "orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
        "shortName": "Fluid Attacks"
      },
      "references": [
        {
          "url": "https://fluidattacks.com/advisories/relsb/"
        },
        {
          "url": "https://www.npmjs.com/package/markdown-pdf/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "markdown-pdf 11.0.0 - Local File Read via Server Side XSS",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
    "assignerShortName": "Fluid Attacks",
    "cveId": "CVE-2023-0835",
    "datePublished": "2023-04-04T00:00:00.000Z",
    "dateReserved": "2023-02-14T00:00:00.000Z",
    "dateUpdated": "2025-12-03T20:12:39.525Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-QGHR-877H-F9JH

CVE-2023-0835 (GCVE-0-2023-0835)

Tags

Sightings

Nomenclature