Vulnerability-Lookup

CNVD-2021-103573

Vulnerability from cnvd - Published: 2021-12-30

Title

MyBB跨站脚本漏洞（CNVD-2021-103573）

Description

MyBB是MyBB团队的开发的一套用PHP和MySQL开发的免费且基于Web的论坛软件。该软件具有简单易用、支持多国语言、可扩展等特点。 MyBB在1.8.28之前版本存在跨站脚本漏洞，该漏洞源于WEB应用的管理员CP的主题管理中显示的模板名称缺少对客户端数据的正确验证。攻击者可利用该漏洞在客户端执行JavaScript代码。

Severity

低

Patch Name

MyBB跨站脚本漏洞（CNVD-2021-103573）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/mybb/mybb/security/advisories/

Reference

https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7

Impacted products

Name
Mybb MyBB <1.8.28

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41866",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41866"
    }
  },
  "description": "MyBB\u662fMyBB\u56e2\u961f\u7684\u5f00\u53d1\u7684\u4e00\u5957\u7528PHP\u548cMySQL\u5f00\u53d1\u7684\u514d\u8d39\u4e14\u57fa\u4e8eWeb\u7684\u8bba\u575b\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u7b80\u5355\u6613\u7528\u3001\u652f\u6301\u591a\u56fd\u8bed\u8a00\u3001\u53ef\u6269\u5c55\u7b49\u7279\u70b9\u3002\n\nMyBB\u57281.8.28\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWEB\u5e94\u7528\u7684\u7ba1\u7406\u5458CP\u7684\u4e3b\u9898\u7ba1\u7406\u4e2d\u663e\u793a\u7684\u6a21\u677f\u540d\u79f0\u7f3a\u5c11\u5bf9\u5ba2\u6237\u7aef\u6570\u636e\u7684\u6b63\u786e\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u5ba2\u6237\u7aef\u6267\u884cJavaScript\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/mybb/mybb/security/advisories/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-103573",
  "openTime": "2021-12-30",
  "patchDescription": "MyBB\u662fMyBB\u56e2\u961f\u7684\u5f00\u53d1\u7684\u4e00\u5957\u7528PHP\u548cMySQL\u5f00\u53d1\u7684\u514d\u8d39\u4e14\u57fa\u4e8eWeb\u7684\u8bba\u575b\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u7b80\u5355\u6613\u7528\u3001\u652f\u6301\u591a\u56fd\u8bed\u8a00\u3001\u53ef\u6269\u5c55\u7b49\u7279\u70b9\u3002\r\n\r\nMyBB\u57281.8.28\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWEB\u5e94\u7528\u7684\u7ba1\u7406\u5458CP\u7684\u4e3b\u9898\u7ba1\u7406\u4e2d\u663e\u793a\u7684\u6a21\u677f\u540d\u79f0\u7f3a\u5c11\u5bf9\u5ba2\u6237\u7aef\u6570\u636e\u7684\u6b63\u786e\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u5ba2\u6237\u7aef\u6267\u884cJavaScript\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": "MyBB\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-103573\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Mybb MyBB \u003c1.8.28"
  },
  "referenceLink": "https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7",
  "serverity": "\u4f4e",
  "submitTime": "2021-10-28",
  "title": "MyBB\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-103573\uff09"
}

CVE-2021-41866 (GCVE-0-2021-41866)

Vulnerability from cvelistv5 – Published: 2021-10-26 21:25 – Updated: 2024-08-04 03:22

Summary

MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP's theme management is not escaped properly.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/mybb/mybb/security/advisories/	x_refsource_MISC
https://github.com/mybb/mybb/security/advisories/…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:22:25.530Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/mybb/mybb/security/advisories/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP\u0027s theme management is not escaped properly."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-26T21:25:47.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mybb/mybb/security/advisories/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-41866",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP\u0027s theme management is not escaped properly."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/mybb/mybb/security/advisories/",
              "refsource": "MISC",
              "url": "https://github.com/mybb/mybb/security/advisories/"
            },
            {
              "name": "https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7",
              "refsource": "CONFIRM",
              "url": "https://github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-41866",
    "datePublished": "2021-10-26T21:25:47.000Z",
    "dateReserved": "2021-10-04T00:00:00.000Z",
    "dateUpdated": "2024-08-04T03:22:25.530Z",
    "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.