Vulnerability-Lookup

CNVD-2022-87609

Vulnerability from cnvd - Published: 2022-12-14

Title

Discourse DiscoTOC跨站脚本漏洞

Description

Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse DiscoTOC 2.1.0之前版本存在跨站脚本漏洞，该漏洞源于能够在启用toc的类别中创建主题的页面缺乏对输入数据转义和过滤，攻击者可利用漏洞导致跨站脚本攻击。

Severity

中

Patch Name

Discourse DiscoTOC跨站脚本漏洞的补丁

Patch Description

Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse DiscoTOC 2.1.0之前版本存在跨站脚本漏洞，该漏洞源于能够在启用toc的类别中创建主题的页面缺乏对输入数据转义和过滤，攻击者可利用漏洞导致跨站脚本攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h

Reference

https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192

Impacted products

Name
Discourse DiscoTOC <2.1.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-39270",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-39270"
    }
  },
  "description": "Discourse\u662f\u4e00\u5957\u5f00\u6e90\u7684\u793e\u533a\u8ba8\u8bba\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u5305\u62ec\u793e\u533a\u3001\u7535\u5b50\u90ae\u4ef6\u548c\u804a\u5929\u5ba4\u7b49\u529f\u80fd\u3002\n\nDiscourse DiscoTOC 2.1.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u80fd\u591f\u5728\u542f\u7528toc\u7684\u7c7b\u522b\u4e2d\u521b\u5efa\u4e3b\u9898\u7684\u9875\u9762\u7f3a\u4e4f\u5bf9\u8f93\u5165\u6570\u636e\u8f6c\u4e49\u548c\u8fc7\u6ee4\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u8de8\u7ad9\u811a\u672c\u653b\u51fb\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://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-87609",
  "openTime": "2022-12-14",
  "patchDescription": "Discourse\u662f\u4e00\u5957\u5f00\u6e90\u7684\u793e\u533a\u8ba8\u8bba\u5e73\u53f0\u3002\u8be5\u5e73\u53f0\u5305\u62ec\u793e\u533a\u3001\u7535\u5b50\u90ae\u4ef6\u548c\u804a\u5929\u5ba4\u7b49\u529f\u80fd\u3002\r\n\r\nDiscourse DiscoTOC 2.1.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u80fd\u591f\u5728\u542f\u7528toc\u7684\u7c7b\u522b\u4e2d\u521b\u5efa\u4e3b\u9898\u7684\u9875\u9762\u7f3a\u4e4f\u5bf9\u8f93\u5165\u6570\u636e\u8f6c\u4e49\u548c\u8fc7\u6ee4\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u8de8\u7ad9\u811a\u672c\u653b\u51fb\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": "Discourse DiscoTOC\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Discourse DiscoTOC \u003c2.1.0"
  },
  "referenceLink": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192",
  "serverity": "\u4e2d",
  "submitTime": "2022-10-10",
  "title": "Discourse DiscoTOC\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2022-39270 (GCVE-0-2022-39270)

Vulnerability from cvelistv5 – Published: 2022-10-06 00:00 – Updated: 2025-04-23 16:52

Title

Arbitrary HTML injection in table-of-contents theme component in DiscoTOC

Summary

DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component's settings) are able to inject arbitrary HTML on that topic's page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -> Themes -> Components -> DiscoTOC -> Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:56 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/discourse/DiscoTOC/security/ad…
https://github.com/discourse/DiscoTOC/commit/f80c…

Impacted products

1 product

Vendor	Product	Version
discourse	DiscoTOC	Affected: < 2.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:00:43.349Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-39270",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:56:49.066432Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:52:41.608Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "DiscoTOC",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-11T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
        },
        {
          "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
        }
      ],
      "source": {
        "advisory": "GHSA-m44p-w923-w32h",
        "discovery": "UNKNOWN"
      },
      "title": "Arbitrary HTML injection in table-of-contents theme component in DiscoTOC"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-39270",
    "datePublished": "2022-10-06T00:00:00.000Z",
    "dateReserved": "2022-09-02T00:00:00.000Z",
    "dateUpdated": "2025-04-23T16:52:41.608Z",
    "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.