GSD-2022-46180

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
Discourse Mermaid (discourse-mermaid-theme-component) allows users of Discourse, open-source forum software, to create graphs using the Mermaid syntax. Users of discourse-mermaid-theme-component version 1.0.0 who can create posts are able to inject arbitrary HTML on that post. The issue has been fixed on the `main` branch of the GitHub repository, with 1.1.0 named as a patched version. Admins can update the theme component through the admin UI. As a workaround, admins can temporarily disable discourse-mermaid-theme-component.
Aliases
Aliases
CVE-2022-46180
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{
  "GSD": {
    "alias": "CVE-2022-46180",
    "id": "GSD-2022-46180"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-46180"
      ],
      "details": "Discourse Mermaid (discourse-mermaid-theme-component) allows users of Discourse, open-source forum software, to create graphs using the Mermaid syntax. Users of discourse-mermaid-theme-component version 1.0.0 who can create posts are able to inject arbitrary HTML on that post. The issue has been fixed on the `main` branch of the GitHub repository, with 1.1.0 named as a patched version. Admins can update the theme component through the admin UI. As a workaround, admins can temporarily disable discourse-mermaid-theme-component.",
      "id": "GSD-2022-46180",
      "modified": "2023-12-13T01:19:37.761741Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-46180",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "discourse-mermaid-theme-component",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "= 1.0.0"
                        }
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            "value": "Discourse Mermaid (discourse-mermaid-theme-component) allows users of Discourse, open-source forum software, to create graphs using the Mermaid syntax. Users of discourse-mermaid-theme-component version 1.0.0 who can create posts are able to inject arbitrary HTML on that post. The issue has been fixed on the `main` branch of the GitHub repository, with 1.1.0 named as a patched version. Admins can update the theme component through the admin UI. As a workaround, admins can temporarily disable discourse-mermaid-theme-component."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-74",
                "lang": "eng",
                "value": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/discourse/discourse-mermaid-theme-component/security/advisories/GHSA-8437-hgcm-p3q3",
            "refsource": "MISC",
            "url": "https://github.com/discourse/discourse-mermaid-theme-component/security/advisories/GHSA-8437-hgcm-p3q3"
          },
          {
            "name": "https://github.com/discourse/discourse-mermaid-theme-component/pull/14",
            "refsource": "MISC",
            "url": "https://github.com/discourse/discourse-mermaid-theme-component/pull/14"
          },
          {
            "name": "https://github.com/discourse/discourse-mermaid-theme-component/commit/c10bc4a08bf865cee20e5d5dffba535762813f0f",
            "refsource": "MISC",
            "url": "https://github.com/discourse/discourse-mermaid-theme-component/commit/c10bc4a08bf865cee20e5d5dffba535762813f0f"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-8437-hgcm-p3q3",
        "discovery": "UNKNOWN"
      }
    },
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                "cpe23Uri": "cpe:2.3:a:discourse:mermaid:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.1.0",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
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        "description": {
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            }
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                  "value": "CWE-79"
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          "reference_data": [
            {
              "name": "https://github.com/discourse/discourse-mermaid-theme-component/commit/c10bc4a08bf865cee20e5d5dffba535762813f0f",
              "refsource": "MISC",
              "tags": [
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            },
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              "name": "https://github.com/discourse/discourse-mermaid-theme-component/pull/14",
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      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2023-01-10T19:43Z",
      "publishedDate": "2023-01-04T17:15Z"
    }
  }
}


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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.


Detection rules are retrieved from Rulezet.