CVE-2021-24284 (GCVE-0-2021-24284)

Vulnerability from cvelistv5 – Published: 2021-05-14 11:38 – Updated: 2024-08-03 19:28
VLAI Previdian
Title
Kaswara Modern VC Addons <= 3.0.1 - Unauthenticated Arbitrary File Upload
Summary
The Kaswara Modern VC Addons WordPress plugin through 3.0.1 allows unauthenticated arbitrary file upload via the 'uploadFontIcon' AJAX action. The supplied zipfile being unzipped in the wp-content/uploads/kaswara/fonts_icon directory with no checks for malicious files such as PHP.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
SayenThemes Kaswara Modern VC Addons Affected: 3.0.1 , ≤ 3.0.1 (custom)
Create a notification for this product.
Credits
Robin Goodfellow
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 21276c35-d518-4013-bb1c-4fb13ae0265a

Vulnerability ID: CVE-2021-24284

Status: Confirmed

Status Updated: 2022-07-13 12:52 CEST

Exploited: Yes

Timestamps
First Seen: 2022-07-13
Asserted: 2022-07-13
Scope
Notes: Kaswara Modern VC Addons <= 3.0.1 - Unauthenticated Arbitrary File Upload | Affected: SayenThemes / Kaswara Modern VC Addons | CVSS: 9.8 (CRITICAL) | EPSS: 0.4214 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Kaswara Modern VC Addons <= 3.0.1 - Unauthenticated Arbitrary File Upload
Cve Id CVE-2021-24284
Vendor SayenThemes
Ghsa Id None
Product Kaswara Modern VC Addons
Added Date 2022-07-13T10:52:06.000Z
Cvss Score 9.8
Epss Score 0.4214
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.98655
Used In Malware unknown
Vulnerability Id CVE-2021-24284
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-02 09:10 CEST | Updated: 2026-10-02 09:10 CEST
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:28:22.818Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kaswara Modern VC Addons",
          "vendor": "SayenThemes",
          "versions": [
            {
              "lessThanOrEqual": "3.0.1",
              "status": "affected",
              "version": "3.0.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Robin Goodfellow"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Kaswara Modern VC Addons WordPress plugin through 3.0.1 allows unauthenticated arbitrary file upload via the \u0027uploadFontIcon\u0027 AJAX action. The supplied zipfile being unzipped in the wp-content/uploads/kaswara/fonts_icon directory with no checks for malicious files such as PHP."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-07-14T15:06:23.000Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Kaswara Modern VC Addons \u003c= 3.0.1 - Unauthenticated Arbitrary File Upload",
      "x_generator": "WPScan CVE Generator",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "contact@wpscan.com",
          "ID": "CVE-2021-24284",
          "STATE": "PUBLIC",
          "TITLE": "Kaswara Modern VC Addons \u003c= 3.0.1 - Unauthenticated Arbitrary File Upload"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Kaswara Modern VC Addons",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "3.0.1",
                            "version_value": "3.0.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "SayenThemes"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Robin Goodfellow"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Kaswara Modern VC Addons WordPress plugin through 3.0.1 allows unauthenticated arbitrary file upload via the \u0027uploadFontIcon\u0027 AJAX action. The supplied zipfile being unzipped in the wp-content/uploads/kaswara/fonts_icon directory with no checks for malicious files such as PHP."
            }
          ]
        },
        "generator": "WPScan CVE Generator",
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-434 Unrestricted Upload of File with Dangerous Type"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5",
              "refsource": "CONFIRM",
              "url": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5"
            },
            {
              "name": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477",
              "refsource": "MISC",
              "url": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477"
            },
            {
              "name": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-24284",
    "datePublished": "2021-05-14T11:38:17.000Z",
    "dateReserved": "2021-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:28:22.818Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-24284",
      "date": "2026-10-10",
      "epss": "0.4214",
      "percentile": "0.98665"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "Kaswara Modern VC Addons",
                "vendor": "SayenThemes",
                "versions": [
                  {
                    "lessThanOrEqual": "3.0.1",
                    "status": "affected",
                    "version": "3.0.1",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "contact@wpscan.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:kaswara_project:kaswara:*:*:*:*:*:wordpress:*:*",
                    "matchCriteriaId": "8B9EF5A0-624E-4C09-8DB5-8DD87CFF3FFA",
                    "versionEndIncluding": "3.0.1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Kaswara Modern VC Addons WordPress plugin through 3.0.1 allows unauthenticated arbitrary file upload via the \u0027uploadFontIcon\u0027 AJAX action. The supplied zipfile being unzipped in the wp-content/uploads/kaswara/fonts_icon directory with no checks for malicious files such as PHP."
          },
          {
            "lang": "es",
            "value": "El plugin de WordPress Kaswara Modern VC Addons versiones hasta 3.0.1, permite la carga de archivos arbitrarios no autenticados mediante la acci\u00f3n AJAX \"uploadFontIcon\".\u0026#xa0;El archivo zip proporcionado est\u00e1 siendo descomprimido en el directorio wp-content/uploads/kaswara/fonts_icon sin comprobaci\u00f3n de archivos maliciosos como PHP"
          }
        ],
        "id": "CVE-2021-24284",
        "lastModified": "2026-06-17T03:39:45.913",
        "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
            }
          ],
          "cvssMetricV31": [
            {
              "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"
            }
          ]
        },
        "published": "2021-05-14T12:15:08.387",
        "references": [
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Exploit",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html"
          },
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Product",
              "Third Party Advisory"
            ],
            "url": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477"
          },
          {
            "source": "contact@wpscan.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/167743/WordPress-Kaswara-Modern-WPBakery-Page-Builder-3.0.1-File-Upload.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Product",
              "Third Party Advisory"
            ],
            "url": "https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://wpscan.com/vulnerability/8d66e338-a88f-4610-8d12-43e8be2da8c5"
          }
        ],
        "sourceIdentifier": "contact@wpscan.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-434"
              }
            ],
            "source": "contact@wpscan.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.