Vulnerability-Lookup

FKIE_CVE-2019-9845

Vulnerability from fkie_nvd - Published: 2019-04-16 18:29 - Updated: 2026-06-17 02:44

Severity

9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

madskristensen Miniblog.Core through 2019-01-16 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in Controllers/BlogController.cs writes a decoded base64 string to a file without validating the extension.

References

URL	Tags
cve@mitre.org	https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142	Third Party Advisory
cve@mitre.org	https://rastating.github.io/miniblog-remote-code-execution/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://rastating.github.io/miniblog-remote-code-execution/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	miniblog.core_project	miniblog.core	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:miniblog.core_project:miniblog.core:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "40BC54C1-3905-4F7A-92F0-69BF6F7D8446",
              "versionEndIncluding": "2019-01-16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "madskristensen Miniblog.Core through 2019-01-16 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in Controllers/BlogController.cs writes a decoded base64 string to a file without validating the extension."
    },
    {
      "lang": "es",
      "value": "El core de MiniBlog, hasta la versi\u00f3n de 2019-01-16, del desarrollador Mads Kristensen, permite a los atacantes remotos ejecutar c\u00f3digo ASPX arbitrario a trav\u00e9s de un elemento IMG con un dato: URL, porque SaveFilesToDisk en Controllers/BlogController.cs escribe una cadena base64 decodificada en un archivo sin validar la extensi\u00f3n."
    }
  ],
  "id": "CVE-2019-9845",
  "lastModified": "2026-06-17T02:44:42.500",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-04-16T18:29:07.827",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://rastating.github.io/miniblog-remote-code-execution/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://rastating.github.io/miniblog-remote-code-execution/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2019-9845 (GCVE-0-2019-9845)

Vulnerability from cvelistv5 – Published: 2019-04-16 17:53 – Updated: 2024-08-04 22:01

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://rastating.github.io/miniblog-remote-code-…	x_refsource_MISC
https://github.com/madskristensen/Miniblog.Core/b…	x_refsource_MISC

Date Public

2019-03-16 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T22:01:54.938Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rastating.github.io/miniblog-remote-code-execution/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      "descriptions": [
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        }
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      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2019-04-16T17:53:22.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          ],
          "url": "https://rastating.github.io/miniblog-remote-code-execution/"
        },
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-9845",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
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                  "product_data": [
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    "datePublished": "2019-04-16T17:53:22.000Z",
    "dateReserved": "2019-03-15T00:00:00.000Z",
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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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.

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FKIE_CVE-2019-9845

CVE-2019-9845 (GCVE-0-2019-9845)

Tags

Sightings

Nomenclature

Related by attack behaviour