Vulnerability-Lookup

CNVD-2021-102799

Vulnerability from cnvd - Published: 2021-12-27

Title

WordPress插件跨站脚本漏洞（CNVD-2021-102799）

Description

WordPress是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 插件是WordPress开源的一个应用插件。 WordPress Plugins Modern Events Calendar Lite 存在跨站脚本漏洞，该漏洞源于在6.1.5之前的Modern Events Calendar Lite WordPress插件在输出回响应之前，未能对其mec列表的当前月份分隔符参数进行处理和逃逸，加载更多的AJAX调用(对未经身份验证和已身份验证的用户都可用)，从而导致跨站点脚本问题。攻击者可利用该漏洞执行客户端代码。

Severity

中

Patch Name

WordPress插件跨站脚本漏洞（CNVD-2021-102799）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-24925

Impacted products

Name
WordPress Modern Events Calendar Lite Plugin <6.1.5

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-24925"
    }
  },
  "description": "WordPress\u662fWordpress\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\u3002WordPress \u63d2\u4ef6\u662fWordPress\u5f00\u6e90\u7684\u4e00\u4e2a\u5e94\u7528\u63d2\u4ef6\u3002\n\nWordPress Plugins Modern Events Calendar Lite \u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u57286.1.5\u4e4b\u524d\u7684Modern Events Calendar Lite WordPress\u63d2\u4ef6\u5728\u8f93\u51fa\u56de\u54cd\u5e94\u4e4b\u524d\uff0c\u672a\u80fd\u5bf9\u5176mec\u5217\u8868\u7684\u5f53\u524d\u6708\u4efd\u5206\u9694\u7b26\u53c2\u6570\u8fdb\u884c\u5904\u7406\u548c\u9003\u9038\uff0c\u52a0\u8f7d\u66f4\u591a\u7684AJAX\u8c03\u7528(\u5bf9\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u548c\u5df2\u8eab\u4efd\u9a8c\u8bc1\u7684\u7528\u6237\u90fd\u53ef\u7528)\uff0c\u4ece\u800c\u5bfc\u81f4\u8de8\u7ad9\u70b9\u811a\u672c\u95ee\u9898\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u5ba2\u6237\u7aef\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-102799",
  "openTime": "2021-12-27",
  "patchDescription": "WordPress\u662fWordpress\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\u3002WordPress \u63d2\u4ef6\u662fWordPress\u5f00\u6e90\u7684\u4e00\u4e2a\u5e94\u7528\u63d2\u4ef6\u3002\r\n\r\nWordPress Plugins Modern Events Calendar Lite \u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u57286.1.5\u4e4b\u524d\u7684Modern Events Calendar Lite WordPress\u63d2\u4ef6\u5728\u8f93\u51fa\u56de\u54cd\u5e94\u4e4b\u524d\uff0c\u672a\u80fd\u5bf9\u5176mec\u5217\u8868\u7684\u5f53\u524d\u6708\u4efd\u5206\u9694\u7b26\u53c2\u6570\u8fdb\u884c\u5904\u7406\u548c\u9003\u9038\uff0c\u52a0\u8f7d\u66f4\u591a\u7684AJAX\u8c03\u7528(\u5bf9\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u548c\u5df2\u8eab\u4efd\u9a8c\u8bc1\u7684\u7528\u6237\u90fd\u53ef\u7528)\uff0c\u4ece\u800c\u5bfc\u81f4\u8de8\u7ad9\u70b9\u811a\u672c\u95ee\u9898\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u5ba2\u6237\u7aef\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "WordPress\u63d2\u4ef6\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-102799\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "WordPress Modern Events Calendar Lite Plugin \u003c6.1.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-24925",
  "serverity": "\u4e2d",
  "submitTime": "2021-12-15",
  "title": "WordPress\u63d2\u4ef6\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-102799\uff09"
}

CVE-2021-24925 (GCVE-0-2021-24925)

Vulnerability from cvelistv5 – Published: 2021-12-13 10:41 – Updated: 2024-08-03 19:49

Title

Modern Events Calendar Lite < 6.1.5 - Reflected Cross-Site Scripting

Summary

The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue

Severity

No CVSS data available.

CWE

CWE-79 - Cross-site Scripting (XSS)

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/82233588-6033-46…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Unknown	Modern Events Calendar Lite	Affected: 6.1.5 , < 6.1.5 (custom)

Credits

Krzysztof Zając

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:49:14.007Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Modern Events Calendar Lite",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.1.5",
              "status": "affected",
              "version": "6.1.5",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Krzysztof Zaj\u0105c"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Cross-site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-13T10:41:20.000Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Modern Events Calendar Lite \u003c 6.1.5 - Reflected Cross-Site Scripting",
      "x_generator": "WPScan CVE Generator",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "contact@wpscan.com",
          "ID": "CVE-2021-24925",
          "STATE": "PUBLIC",
          "TITLE": "Modern Events Calendar Lite \u003c 6.1.5 - Reflected Cross-Site Scripting"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Modern Events Calendar Lite",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "6.1.5",
                            "version_value": "6.1.5"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Unknown"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Krzysztof Zaj\u0105c"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Modern Events Calendar Lite WordPress plugin before 6.1.5 does not sanitise and escape the current_month_divider parameter of its mec_list_load_more AJAX call (available to both unauthenticated and authenticated users) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue"
            }
          ]
        },
        "generator": "WPScan CVE Generator",
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-79 Cross-site Scripting (XSS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0",
              "refsource": "MISC",
              "url": "https://wpscan.com/vulnerability/82233588-6033-462d-b886-a8ef5ee9adb0"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2021-24925",
    "datePublished": "2021-12-13T10:41:20.000Z",
    "dateReserved": "2021-01-14T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:49:14.007Z",
    "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.