Vulnerability-Lookup

CNVD-2021-36049

Vulnerability from cnvd - Published: 2021-05-20

Title

WordPress Classyfrieds Plugin远程代码执行漏洞

Description

WordPress是WordPress（Wordpress）基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。 WordPress Classyfrieds Plugin 3.8及之前版本存在远程代码执行漏洞。该漏洞源于程序未对上传的文件进行正确检查。攻击者可通过插件的“添加列表”功能利用该漏洞上传任意PHP文件，从而导致远程代码执行。

Severity

中

Formal description

目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本： http://wordpress.org/ https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-24253

Impacted products

Name
WordPress Classyfrieds Plugin <=3.8

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-24253",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-24253"
    }
  },
  "description": "WordPress\u662fWordPress\uff08Wordpress\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u4f7f\u7528PHP\u8bed\u8a00\u5f00\u53d1\u7684\u535a\u5ba2\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u652f\u6301\u5728PHP\u548cMySQL\u7684\u670d\u52a1\u5668\u4e0a\u67b6\u8bbe\u4e2a\u4eba\u535a\u5ba2\u7f51\u7ad9\u3002\n\nWordPress Classyfrieds Plugin 3.8\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9\u4e0a\u4f20\u7684\u6587\u4ef6\u8fdb\u884c\u6b63\u786e\u68c0\u67e5\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u63d2\u4ef6\u7684\u201c\u6dfb\u52a0\u5217\u8868\u201d\u529f\u80fd\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0a\u4f20\u4efb\u610fPHP\u6587\u4ef6\uff0c\u4ece\u800c\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u8fd8\u6ca1\u6709\u63d0\u4f9b\u8865\u4e01\u6216\u8005\u5347\u7ea7\u7a0b\u5e8f\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u7684\u4e3b\u9875\u4ee5\u83b7\u53d6\u6700\u65b0\u7248\u672c\uff1a \r\nhttp://wordpress.org/ https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-36049",
  "openTime": "2021-05-20",
  "products": {
    "product": "WordPress Classyfrieds Plugin \u003c=3.8"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-24253",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-14",
  "title": "WordPress Classyfrieds Plugin\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2021-24253 (GCVE-0-2021-24253)

Vulnerability from cvelistv5 – Published: 2021-05-05 18:39 – Updated: 2024-08-03 19:28

Title

Classyfrieds <= 3.8 - Authenticated Arbitrary File Upload to RCE

Summary

The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.

Severity

No CVSS data available.

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

WPScan mitre root

References

2 references

URL	Tags
https://wpscan.com/vulnerability/ee42c233-0ff6-4b…	x_refsource_CONFIRM
https://github.com/jinhuang1102/CVE-ID-Reports/bl…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Unknown	Classyfrieds	Affected: 3.8 , ≤ 3.8 (custom)

Credits

Jin Huang

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:28:22.247Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Classyfrieds",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThanOrEqual": "3.8",
              "status": "affected",
              "version": "3.8",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jin Huang"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-05T18:39:43.000Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Classyfrieds \u003c= 3.8 - Authenticated Arbitrary File Upload to RCE",
      "x_generator": "WPScan CVE Generator",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "contact@wpscan.com",
          "ID": "CVE-2021-24253",
          "STATE": "PUBLIC",
          "TITLE": "Classyfrieds \u003c= 3.8 - Authenticated Arbitrary File Upload to RCE"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Classyfrieds",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "3.8",
                            "version_value": "3.8"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Unknown"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Jin Huang"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE."
            }
          ]
        },
        "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/ee42c233-0ff6-4b27-a5ec-ad3246bef079",
              "refsource": "CONFIRM",
              "url": "https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079"
            },
            {
              "name": "https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md",
              "refsource": "MISC",
              "url": "https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-24253",
    "datePublished": "2021-05-05T18:39:43.000Z",
    "dateReserved": "2021-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:28:22.247Z",
    "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.

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.

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CNVD-2021-36049

CVE-2021-24253 (GCVE-0-2021-24253)

Tags

Sightings

Nomenclature

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