Vulnerability-Lookup

FKIE_CVE-2021-34647

Vulnerability from fkie_nvd - Published: 2021-09-22 18:15 - Updated: 2026-06-17 03:56

Severity

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

Summary

The Ninja Forms WordPress plugin is vulnerable to sensitive information disclosure via the bulk_export_submissions function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to export all Ninja Forms submissions data via the /ninja-forms-submissions/export REST API which can include personally identifiable information.

References

URL	Tags
security@wordfence.com	https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107	Patch, Third Party Advisory
security@wordfence.com	https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	ninjaforms	ninja_forms	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Ninja Forms",
          "vendor": "Saturday Drive",
          "versions": [
            {
              "lessThanOrEqual": "3.5.7",
              "status": "affected",
              "version": "3.5.7",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*",
              "matchCriteriaId": "E923EB35-C3B2-4F95-8E70-D2A5ADAD33BC",
              "versionEndIncluding": "3.5.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Ninja Forms WordPress plugin is vulnerable to sensitive information disclosure via the bulk_export_submissions function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to export all Ninja Forms submissions data via the /ninja-forms-submissions/export REST API which can include personally identifiable information."
    },
    {
      "lang": "es",
      "value": "El plugin Ninja Forms de WordPress es vulnerable a una divulgaci\u00f3n de informaci\u00f3n confidencial por medio de la funci\u00f3n bulk_export_submissions que se encuentra en el archivo ~/includes/Routes/Submissions.php, en versiones hasta la 3.5.7 incluy\u00e9ndola. Esto permite a atacantes autenticados exportar todos los datos de los env\u00edos de Ninja Forms por medio de la API REST /ninja-forms-submissions/export, que puede incluir informaci\u00f3n personal identificable"
    }
  ],
  "id": "CVE-2021-34647",
  "lastModified": "2026-06-17T03:56:17.850",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-34647",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-31T18:12:30.799557Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-09-22T18:15:11.217",
  "references": [
    {
      "source": "security@wordfence.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107"
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-34647 (GCVE-0-2021-34647)

Vulnerability from cvelistv5 – Published: 2021-09-22 17:53 – Updated: 2025-03-31 18:12

Title

Ninja Forms <= 3.5.7 Sensitive Information Disclosure

Summary

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-31 18:12 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

Wordfence mitre root

References

2 references

URL	Tags
https://www.wordfence.com/blog/2021/09/recently-p…	x_refsource_MISC
https://plugins.trac.wordpress.org/browser/ninja-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Saturday Drive	Ninja Forms	Affected: 3.5.7 , ≤ 3.5.7 (custom)

Date Public

2021-09-22 00:00

Credits

Chloe Chamberland, Wordfence

Show details on NVD website

JSON

To clipboard

{
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "url": "https://www.wordfence.com/blog/2021/09/recently-patched-vulnerabilities-in-ninja-forms-plugin-affects-over-1-million-site-owners/"
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            "url": "https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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              "content": {
                "id": "CVE-2021-34647",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-31T18:12:30.799557Z",
                "version": "2.0.3"
              },
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-31T18:12:36.488Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Ninja Forms",
          "vendor": "Saturday Drive",
          "versions": [
            {
              "lessThanOrEqual": "3.5.7",
              "status": "affected",
              "version": "3.5.7",
              "versionType": "custom"
            }
          ]
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      ],
      "credits": [
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      ],
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        }
      ],
      "metrics": [
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
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          "url": "https://plugins.trac.wordpress.org/browser/ninja-forms/trunk/includes/Routes/Submissions.php?rev=2543837#L107"
        }
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      "solutions": [
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          "lang": "en",
          "value": "Update to version 3.5.8 or newer."
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Ninja Forms \u003c= 3.5.7 Sensitive Information Disclosure",
      "x_generator": {
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        "CVE_data_meta": {
          "AKA": "Wordfence",
          "ASSIGNER": "security@wordfence.com",
          "DATE_PUBLIC": "2021-09-22T15:21:00.000Z",
          "ID": "CVE-2021-34647",
          "STATE": "PUBLIC",
          "TITLE": "Ninja Forms \u003c= 3.5.7 Sensitive Information Disclosure"
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                      "product_name": "Ninja Forms",
                      "version": {
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                          {
                            "version_affected": "\u003c=",
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                "vendor_name": "Saturday Drive"
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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.

Detection rules are retrieved from Rulezet.

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.