Vulnerability-Lookup

FKIE_CVE-2023-6887

Vulnerability from fkie_nvd - Published: 2023-12-17 01:15 - Updated: 2026-06-17 06:51

Severity

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-248247.

References

URL	Tags
cna@vuldb.com	https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md	Exploit, Third Party Advisory
cna@vuldb.com	https://vuldb.com/?ctiid.248247	Permissions Required
cna@vuldb.com	https://vuldb.com/?id.248247	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://vuldb.com/?ctiid.248247	Permissions Required
af854a3a-2127-422b-91ae-364da2661108	https://vuldb.com/?id.248247	Third Party Advisory

Impacted products

	Vendor	Product	Version
	forestblog_project	forestblog	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "modules": [
            "Image Upload Handler"
          ],
          "product": "ForestBlog",
          "vendor": "saysky",
          "versions": [
            {
              "status": "affected",
              "version": "20220630"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:forestblog_project:forestblog:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5AC85B8A-4716-4E2F-9A5A-6585CFEF3014",
              "versionEndIncluding": "2022-06-30",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-248247."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad ha sido encontrada en saysky ForestBlog hasta 20220630 y clasificada como cr\u00edtica. Una parte desconocida del archivo /admin/upload/img del componente Image Upload Handler ha sido encontrada y clasificada como cr\u00edtica. La manipulaci\u00f3n del argumento nombre de archivo conduce a una carga sin restricciones. Es posible iniciar el ataque de forma remota. El exploit ha sido divulgado al p\u00fablico y puede utilizarse. El identificador asociado de esta vulnerabilidad es VDB-248247."
    }
  ],
  "id": "CVE-2023-6887",
  "lastModified": "2026-06-17T06:51:37.100",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-6887",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-27T16:07:26.215429Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-12-17T01:15:27.553",
  "references": [
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://vuldb.com/?ctiid.248247"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vuldb.com/?id.248247"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://vuldb.com/?ctiid.248247"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vuldb.com/?id.248247"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

CVE-2023-6887 (GCVE-0-2023-6887)

Vulnerability from cvelistv5 – Published: 2023-12-17 00:31 – Updated: 2024-08-27 16:07

Title

saysky ForestBlog Image Upload img unrestricted upload

Summary

Severity

6.3 (Medium)


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

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-27 16:07 UTC

CWE

CWE-434 - Unrestricted Upload

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3807 records in the last 180 days details

References

3 references

URL	Tags
https://vuldb.com/?id.248247	vdb-entrytechnical-description
https://vuldb.com/?ctiid.248247	signaturepermissions-required
https://github.com/daydust/vuln/blob/main/ForestB…	exploit

Impacted products

1 product

Vendor	Product	Version
saysky	ForestBlog	Affected: 20220630

Credits

daylightqc (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:42:08.212Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "technical-description",
              "x_transferred"
            ],
            "url": "https://vuldb.com/?id.248247"
          },
          {
            "tags": [
              "signature",
              "permissions-required",
              "x_transferred"
            ],
            "url": "https://vuldb.com/?ctiid.248247"
          },
          {
            "tags": [
              "exploit",
              "x_transferred"
            ],
            "url": "https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-6887",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-27T16:07:26.215429Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-08-27T16:07:38.915Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "Image Upload Handler"
          ],
          "product": "ForestBlog",
          "vendor": "saysky",
          "versions": [
            {
              "status": "affected",
              "version": "20220630"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "analyst",
          "value": "daylightqc (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-248247."
        },
        {
          "lang": "de",
          "value": "Es wurde eine Schwachstelle in saysky ForestBlog bis 20220630 entdeckt. Sie wurde als kritisch eingestuft. Es geht dabei um eine nicht klar definierte Funktion der Datei /admin/upload/img der Komponente Image Upload Handler. Durch Beeinflussen des Arguments filename mit unbekannten Daten kann eine unrestricted upload-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk passieren. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434 Unrestricted Upload",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-17T00:31:04.405Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.248247"
        },
        {
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.248247"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/daydust/vuln/blob/main/ForestBlog/Arbitrary_File_Upload_Vulnerability.md"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-12-16T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2023-12-16T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2023-12-16T09:43:19.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "saysky ForestBlog Image Upload img unrestricted upload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2023-6887",
    "datePublished": "2023-12-17T00:31:04.405Z",
    "dateReserved": "2023-12-16T08:37:10.091Z",
    "dateUpdated": "2024-08-27T16:07:38.915Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

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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.

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.

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